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1.
本文以中国、日本、韩国电力体制改革实践为比较对象,从改革的起点、目标的选择、引入竞争的方式、电力监管、电力民营化、改革的成效几个角度进行了分析,力求得到一些对深化中国电力市场化改革有意义的启示。  相似文献   
2.
This study compares the landscape-scale taphonomic signal of carnivore modification to the surficial bone assemblage in Amboseli Park, Kenya as it was in 1975 and 2002–2004. Change in predator abundances over time provides a means of assessing the taphonomic signal of carnivore-mediated bone consumption and destruction under differing ecological conditions and varying levels of conspecific competition for resources. The landscape assemblage indicates taxonomic variation in the patterning of carnivore modification to ungulates of different size classes as well as within equivalent size classes. Analyses of long bone elements indicate that the differential destruction of limb ends and the strength of the correlation between limb end abundance and bone mineral density provide an indication of the intensity of carnivore modification to a faunal assemblage. The ability to infer levels of carnivore modification based on limb elements can provide faunal analysts with the tools to determine whether the taphonomic signals in the fossil record relate to carnivore modification, hominin transport of appendicular elements, or both.  相似文献   
3.
以北京浩沙健身连锁俱乐部为例,尝试利用公众在大众点评网、新浪微博等网络社区中发布的关注度、评价等作为加权因子,分析连锁网点之间的竞争状态,建立了一个基于互联网信息的加权因子计算模型,计算各连锁店的市场竞争域,结果显示互联网空间信息能够对连锁店之间的空间竞争产生指示作用,各分店表现出明显的竞争力差异;提出对加权Voronoi图区位意义上的地理学新解释:它不仅反映连锁店基本市场域,而且其边线弯曲度和单元面积的变化还可折射各连锁店在互联网空间中的吸引力差异。  相似文献   
4.
邓彩霞 《攀登》2009,28(2):92-95
加强地方政府之间的合作,既是公共行政改革的必然趋势,也是当今行政科学研究的热点问题。本文在分析无隶属关系地方府际关系的内涵及其竞争与合作类型的基础上,指出它们之间应建立协商合作、互相支援、互通有无、互惠互利的关系。  相似文献   
5.
大都市区民宿和酒店业的空间竞争区位识别及其态势驱动力解析是实现都市旅游住宿业多业态共赢与全域可持续的重要现实条件。本文利用GIS空间分析技术和地理探测器,从微观尺度刻画上海市民宿和酒店业的空间竞争格局演化特征并探测其影响因素。研究发现:①上海市民宿业和酒店业集聚热点均趋向群集演化,民宿业历经“零星单点、单核、双核引领+郊区多组团”演化阶段且具有显著的景区指向性;酒店业历经“单核、单核强化、面状集聚+点状环绕”演化阶段且具有显著的城市商业中心指向性;②民宿业与酒店业的空间竞争程度加剧,竞争范围扩大,竞争形式由酒店业近乎垄断的空间剩余竞争发展为空间非剩余竞争和剩余竞争并存,最终形成空间竞争与错位共生并存状态。③文旅禀赋、商业设施和人口集聚是影响民宿和酒店业微观布局的主要因素,地价和交通条件的影响次之;经营理念、客群定位、经济实力以及空间载体差异是造成民宿和酒店业格局分异的隐性宏观动因。  相似文献   
6.
Abstract

Osphresiology, though beginning with Aristotle, and the title of a classical monograph from 1819 by Cloquet, has, like the human sense of smell itself, played a relatively modest role, compared to other sensory functions. The anatomical and physiological connections of the nose to the brain proved to be more complex than those of sight, hearing and even touch, and were therefore poorly understood before the second half of the 19th century. Moreover, the close association between smell and taste gave rise to much controversy regarding the respective roles of the first and the fifth cranial nerves. Next, came the unfolding of the evolutionary influence of cerebral structure and function ‐ viz Broca's “limbic”; concept, and the “olfactory desert”; in the brains of “anosmatic”; animals. Jackson's “uncinate”; seizures featuring olfactory hallucinations brought the hippocampal formation into focus. Finally, there were the clinical manifestations of hyposmia and hyperosmia, from “coryza”;, the common cold, to injury or neoplasms causing hyposmia, as well as some endocrine alterations causing hyperosmia. (And let us not forget Charles Huysman's “Against the Grain”; and Marcel Proust's evocative fragrant madeleine.)  相似文献   
7.
刘佳  张捷  顾朝林 《人文地理》2005,20(3):79-83
随着视野、目标的变化,区域旅游规划迈入了一个更为广阔的天地,空间竞争与区域合作并不是单一存在的,而是相辅相成的,在实践中,我们应以空间竞争研究为导向确定合作区域的范围,而最终目的是以建立在良好空间结构基础上的区域的适宜合作提高其在更大空间尺度上的竞争能力。在相似的自然环境条件和同一的文化背景下发展起来的江南六大古镇,其空间认知的相似性和目标市场的趋同性,使其在旅游开发的过程中,面临着无序竞争的危机,却同时也为区域合作提供了契机;建立在旅游资源的差异性和空间结构完善基础上的区域旅游合作是唯一的解决途径。  相似文献   
8.
Brett Christophers 《对极》2018,50(4):864-890
Different economic measures afford different ways of seeing processes of financialisation. In the prototypical case of the US economy, the most compelling evidence of post‐1970s financialisation is found in corporate profits measures. This much has been clear for at least a decade. What remains much less clear, however, is the explanation for the long‐term maintenance and amplification of extreme financial‐sector profitability that financialisation in the United States has and continues to entail. With a specific focus on banking, this article turns to post‐Marxian scholarship on profit rate trends to explain this phenomenon. It argues that limited and declining levels of competition within the US banking sector during recent decades—rooted in high levels of industry concentration, collusive behaviour, and substantial entry barriers—have contributed to sustaining and boosting abnormal sectoral profitability. In doing so, the article theorises financialisation in the United States explicitly in terms of monopoly profit.  相似文献   
9.
The rapid expansion in support for the Scottish National Party (SNP) between the 2010 and 2015 general elections substantially changed the country’s electoral geography, as again did its relative decline at the next election in 2017. At that last contest, however, the SNP won many seats with fewer than 40% of the votes cast, a situation very different from that in the rest of Great Britain. That difference – which had a considerable impact on the formation of a government in June 2017 – came about because of the nature of the competition in individual seats.  相似文献   
10.
The Australian superannuation industry has grown enormously over the past 30 years. Whereas working people are automatically enrolled at their workplaces, the head offices of many industry funds are in Melbourne rather than Sydney. Melbourne’s dominance of the superannuation industry is explained, in part, by happenstance—the location of major unions and employer groups and their initiatives in response to the enabling legislation. Other factors identified include opportunism, cooperation, and the advantages of growth. Government-prompted mergers and acquisitions have also reinforced the dominance of Melbourne, notwithstanding attempts by Sydney-based superannuation funds to out-compete their Melbourne rivals. Whereas the geographical bifurcation of the Australian superannuation industry has been mediated by the formation of a Queensland-based superfund “champion,” it is suggested that it faces numerous challenges. In conclusion, avenues for future research are sketched, focusing upon the future of Melbourne as the centre of the superannuation industry, the role of digital platforms in service delivery, pension adequacy, and the increasing importance of Australian funds in global financial markets.  相似文献   
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