首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   86篇
  免费   1篇
  2020年   2篇
  2019年   5篇
  2018年   3篇
  2017年   3篇
  2016年   2篇
  2015年   1篇
  2014年   1篇
  2013年   20篇
  2012年   1篇
  2011年   4篇
  2009年   1篇
  2008年   3篇
  2005年   1篇
  2004年   1篇
  2003年   5篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1999年   2篇
  1998年   1篇
  1994年   2篇
  1991年   2篇
  1989年   1篇
  1986年   1篇
  1985年   1篇
  1984年   3篇
  1983年   4篇
  1982年   1篇
  1981年   1篇
  1980年   2篇
  1976年   1篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
排序方式: 共有87条查询结果,搜索用时 0 毫秒
41.
42.
The service hub concept is strongly associated with deprived areas of North American inner cities, where agglomerations of low‐cost housing and service providers form a space of survival for marginalised populations. In this paper, we contend that service hubs can take other forms, including as small‐scale sites of housing and service provision, informally networked across an urban region. We develop this argument with reference to suburban campgrounds in Auckland, New Zealand—a city experiencing a severe housing affordability crisis. Both individually and collectively, campgrounds enable vulnerable households, as well as tourists, to inhabit an increasingly exclusionary urban environment. Drawing on interviews with 24 resident campers and eight managers, we highlight the role of campgrounds in supporting residents through the provision of informal housing and on‐site services. This provision also benefits the facilities' owners and managers, by creating a year‐round rental income stream. We find that campgrounds are critically important for those whose lives are rendered precarious by the housing market.  相似文献   
43.
David Nally  Gerry Kearns 《对极》2020,52(5):1373-1392
The potato has been critical to plant–human assemblages both in South America and in Europe. A study of the capacities, or affordances of this plant within diverse political economies highlights its mutability in some circumstances and vulnerability in others. The contrasts are stark. In South America, peasant agriculture took the potato across a large and diverse ecumene allowing its elaboration into many varieties and sustaining extensive state systems that taxed its production. Spanish colonialism repurposed the plant as the calorific basis for concentrations of coerced labour at silver mines. Back in Europe it was initially the resistance of the potato to state violence that encouraged peasants to turn over their fields to a tuberous plant that “concealed” its food underground. But its calorific productivity per acre again saw it repurposed as peasants were converted to proletarians, allowed to subsist on only the smallest plots while working for landlords on larger estates.  相似文献   
44.
45.
46.
47.
This paper analyses the multimedia industry in Sydney. It seeks to understand whether the emergence of the industry has involved dense horizontal and vertical inter‐firm linkages characteristic of an industrial cluster, or whether the industry has grown because of general urbanisation economies related to such factors as skilled labour supply and market demand. The industry is highly concentrated in and around central Sydney. This provides the best access to firms’ main clients, notably advertising companies and other multimedia firms. It also reflects the centralised location of skilled labour such as web designers. While there is evidence of an emerging inner Sydney multimedia cluster which includes graphic design and advertising and related media, the main driver of the industry's development appears to have been general demand from advertising and related media companies, in association with the pool of computer graphics talent generated by these companies.  相似文献   
48.
This study applies an intra-skeletal sampling strategy to examine post-mortem alteration of archaeological human bone from west Mexico, and to reconstruct ancient diet. Human bone from the Chupicuaro culture (Mexico, Preclassic period) constitutes an ideal material with which to examine subsistence strategies because the specific hydrothermal environment in which the population lived would have provided certain food components (hydrothermal waters and carbonates) with distinct signature in Ca, Mg, F, Li, Sr, Mn, V and U values. Four to ten samples were taken from the long bones of six skeletons. Bone trace element content (Ca, P, F, Mn, Mg, Na, Li, V, Zn, Rb, Sr, Ba, Y, La, Ce, Nd, Th, U) and bone alteration parameters (crystallinity, organic matter and secondary calcite content) were analysed at the intra-skeletal level. Stable isotopic signatures (bone δ13C and δ18Ocarbonate) and histological analyses were also performed on a single bone from each individual. Results indicate that all of the skeletons were affected by post-mortem mineralogical, structural and geochemical transformations. Biological bone δ13C values seem preserved for most of the individuals but an increase in crystallinity accompanies depletion in bone δ18O values. The combination of bone alteration parameters with bone elemental content shows that in this very specific context, a widespread dissolution-recrystallisation is unlikely. Of the hydrothermal tracers, Sr, F and Li were of particular interest because their retention in living tissues is related to the amount ingested. The intra-skeletal Li content does not reveal any pattern but Li depletion is not excluded. In contrast, Sr and F show a progressive intra-skeletal diagenetic enrichment likely due to gradual diffusion–adsorption processes. The bones with the lowest concentrations in these elements are assumed to yield the best representative ante-mortem values. The signal extracted from each skeleton, a very unusually high bone Sr, F and Li content, is interpreted as reflecting the consumption of the local hydrothermal products, which are also enriched in these elements.  相似文献   
49.
ABSTRACT

Imaginaries of touristic otherness have traditionally been closely related to geographical distance and travel far away from the everyday. But in today's context of sustainable tourism, a moral and behavioral shift may be expected, toward traveling near home. Distance may actually become a disadvantage and proximity a new commodity. This implies a need to disentangle subjective understandings of both distance and proximity in relation to perceived attractiveness of and touristic behavior in places near home. Thus, it is aimed to shed light on how ‘proximity tourism’ is constructed, endorsed and appreciated (or not).

An online survey (N = 913) was administered to residents of the Dutch province of Friesland, exploring their attitudes toward their home province as tourism destination and representations of proximity and distance in relation to preferred vacation destinations. We grouped respondents into four categories, reflecting destination preferences: (1) proximate, (2) distant, (3) intermediate and (4) mixed. These groups were differentiated and characterized using quantitative and qualitative analyses. The ‘proximate’ and ‘distant’ preference groups, respectively, were most and least engaged in proximity tourism. However, the perceptions of proximity and distance expressed by the ‘intermediate’ and ‘mixed’ preference groups were associated in a nonlinear way with appreciation of the home region as a tourism destination. Additionally, respondents used proximity and distance in various ways as push, pull, keep and repel factors motivating their destination preferences.

Interpretations of both proximity and distance were thus important in determining engagement in proximity tourism and, in turn, the potential for proximity tourism development in the region. This implies that such development will require a balanced consideration of the relative, temporally sensitive ways that people negotiate distance and proximity in their perceptions of being at home and away. Our results advance the discussion about imaginaries of travel, distance and proximity, and their impact on regional tourism.  相似文献   
50.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号