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   499篇
  免费   21篇
  2021年   5篇
  2020年   11篇
  2019年   16篇
  2018年   19篇
  2017年   16篇
  2016年   21篇
  2015年   14篇
  2014年   11篇
  2013年   159篇
  2012年   15篇
  2011年   12篇
  2010年   15篇
  2009年   11篇
  2008年   7篇
  2007年   11篇
  2006年   6篇
  2005年   5篇
  2004年   8篇
  2003年   4篇
  2002年   11篇
  2001年   8篇
  2000年   3篇
  1999年   13篇
  1998年   5篇
  1997年   7篇
  1996年   4篇
  1994年   5篇
  1993年   3篇
  1992年   6篇
  1991年   4篇
  1990年   5篇
  1989年   3篇
  1988年   4篇
  1986年   2篇
  1984年   2篇
  1983年   8篇
  1982年   3篇
  1981年   2篇
  1980年   2篇
  1979年   5篇
  1978年   4篇
  1976年   5篇
  1975年   3篇
  1974年   3篇
  1973年   4篇
  1971年   2篇
  1970年   2篇
  1969年   4篇
  1968年   4篇
  1967年   3篇
排序方式: 共有520条查询结果,搜索用时 15 毫秒
121.
122.
123.
Because medical records of individuals contracting measles were not kept in northwest lceland for epidemics before 1904, the spread of the disease in 1846 and 1882 has been traced from notifications of death recorded in burial registers and census returns. Using this evidence, a time-space matrix of measles deaths has been constructed and the dynamics of the diffusion process through a necklace of small communities strung along the coast has been analysed. In each of the three epidemics the mortality curve corresponded closely to an S-shaped logistic model, each new epidemic passing through the area more rapidly than its predecessor. The operation of a neighbourhood effect from a single point of introduction implies that the disease should move in a wave-like form through the area. Whereas the 1882 epidemic advanced steadily as a wave-front progression characteristic of the neighbourhood effect, those of 1846 and 1904 had strong spatial biases towards the parish of Eyri. The intense localization of the outbreaks in 1846 and 1904 appears not to be related directly to distinctive features in the demography or form of the settlement. In 1904 a confirmation service held in Eyri church brought many victims into contact with a measles carrier, but no special circumstances have been reported or can be deduced for 1846.  相似文献   
124.
A project by SCAPE, NAS, and local volunteers at Newshot Island on the Clyde near Glasgow has documented an important ships graveyard dating to the early 20th century. The vessels tell the story of the creation of the Clyde Navigation, represent a significant aspect of the river's history, and exemplify the technological and industrial development of the region. The survey and research revealed that the remains on site include the earliest diving support vessel known to have been recorded, and has resulted in the designation of the remains as a Scheduled Ancient Monument by Historic Environment Scotland.  相似文献   
125.
This paper examines the hallmarks of an emergent and distinctive Australian and New Zealand health geography over the last 30 years. Building on an assessment of the early development of the sub‐discipline in the two countries, a review of published work reveals the co‐presence of local themes alongside connections to more global perspectives associated notably with health behaviour. Further common themes are the influence of year‐round exposure to outdoor spaces and the proximity of “blue spaces” to urban centres. However, there are divergences in the evolution of the sub‐discipline. A comparison of attendance at the biennial International Medical Geography Symposia (held since 1985) with publications in the journal Health & Place reveals differentially globalised characters. A steady flow of international visitors and appointments to New Zealand universities as well as more apparent connections to the wider discipline of geography contrast with more applied geospatial and public health connections in Australian health geography.  相似文献   
126.
Facing challenges to the civic purpose of higher education, some scholars and administrators turn to the rhetoric of engagement. Simultaneously, the political philosophy of cosmopolitanism has gained intellectual favor, advocating openness to the lived experiences of distant others. We articulate linkages between these two discourses in an extended case study, finding that a cosmopolitan ethos of engagement in a rural context can improve (1) understanding among people ordinarily separated by spatialized social‐ecological differences, (2) prospects for longer term environmental sustainability, and (3) the visionary potential of collaborative inquiry. Despite globalization of food systems and neoliberal shifts in fishery management, an annual fisheries forum facilitates coalitions that overcome dichotomies between technocratic and local knowledge, extending benefits to fishing communities, academia, and public policy. Iterative and loosely structured capacity building expands informally through affective processes of recognition and care, as decentralized leadership supports collective mobilization toward alternate futures.  相似文献   
127.
This article uses a new data-set to calculate the ‘political economy’ or nature and purpose of taxation and spending in Jamaica between 1768 and 1839. It argues that these levels increased considerably, both in absolute terms and relative to the size of the population and economy of the island, and that the assembly raised taxes mainly to protect the white elite and the plantation economy against slave revolts and foreign invasion. Although the balance of spending shifted after Emancipation in 1834, the purpose did not, since military spending was simply redirected to subsidise policing and the cost of public order. Depending on how the national income or gross domestic product of the island is calculated, levels of taxation rose from 2 per cent in peacetime to about 4–6 per cent in wartime, peaking at 6–8 per cent in moments of crisis. White elites therefore made a significant contribution to the cost of their own defence, and to the wider projection of imperial power, and were willing to tolerate increasingly high levels of taxation because it was spent in ways that suited their interests. They thereby formed the colonial sinews of imperial power.  相似文献   
128.
The flipped classroom approach, a form of blended learning, is currently popular in education praxis. Initial reports on the flipped classroom include that it offers opportunities to increase student engagement and build meaningful learning and teaching experiences. In this article, we analyse teacher and student experiences of a trial flipped classroom application in a third year undergraduate human geography course that challenges conventional thinking and practice in resource management, including an explicit focus on the marginalization of Indigenous knowledges in that context. The flipped classroom trial included empirical research with teachers and students to gauge the strengths and weaknesses of this mode of learning. Interviews, focus groups, surveys, reflections and participant-observation activities were conducted before, during and after the course. The research shows that this particular implementation of the flipped classroom approach generated multiple experiences for teachers and students, some constructive, others less so. Overall, space, time and flexibility matters not only to the kinds of pedagogical tools we employed to tailor learning to students’ differing needs, but also to the kinds of learning spaces – online and offline, individually and in groups – in which learning happens.  相似文献   
129.
130.
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