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61.
Mitchell G. Ash 《Berichte zur Wissenschaftsgeschichte》2006,29(3):181-189
Knowledge and science transfer – introductory remarks. The article presents introductory remarks on the historical study of knowledge and science transfer. Discussion focuses initially on the reasons for speaking of knowledge transfer and not only about science transfer, and the relations of this topic to current research in general history on cultural transfer. Multiple levels of knowledge / science transfer are then discussed, specifically: (1) transfer by means of migration or other movement of people across geographic boundaries; (2) scientific changes related to the transfer of objects (such as plant specimens or instruments) across continents or disciplines; (3) knowledge or science transfer in practical contexts. Addressed throughout is the problematic character of the concept of transfer itself. The author suggests that users of this concept often presuppose a static conception of scientific and cultural contents being more or less successfully transferred; more interesting, however, are the changes in science and culture conditioned or caused by the migration of individuals as well as the transfer of culture by other means. 相似文献
62.
Sarah Pralle 《政策研究杂志》2006,34(2):171-194
Issue redefinition and venue shopping have been identified as key strategies for enacting agenda and policy change, but much work remains to be done in elaborating these processes. I argue that an important aspect of issue redefinition involves shifting not only the image of an issue but also the bases for considering those issues—what I call policy principles. Policy principles are the core values, beliefs, or guidelines attached to policies that help direct decision making. The emergence and acceptance of new principles by the public and policymakers can be a vital source of policy change, at times having far greater consequences for policy than redefining an issue. Venue shopping is also a multifaceted undertaking involving efforts by policy entrepreneurs and advocacy groups to keep issues out of venues they would rather not participate in as well as move decision making to new arenas. Moreover, while the literature suggests that shifting venues is usually a sensible strategy, sometimes venue shopping can backfire. A case study of the municipal movement to restrict the nonessential use of lawn and garden pesticides in Canada illustrates these theoretical points and shows the applicability of agenda setting models to contexts outside the United States. 相似文献
63.
William Lowry 《政策研究杂志》2006,34(3):313-335
Why do policies change dramatically? Most prominent theories and many empirical studies of policy change address that question with attention to external shocks to policy systems or focusing events. These shocks or events are usually described as unplanned, unpredicted jolts such as global crises or natural disasters. I assert a role for focusing projects. These planned activities continue traditional priorities in an issue but do so to a degree perceived as excessive by enough people to shatter seemingly stable policy systems. I then propose a theoretical framework to explain the varying impacts from such projects. The framework uses two dimensions: one that accounts for the mobilization of pro‐change forces and one that assesses policy learning by members of pro‐status quo coalitions. I examine this framework in the context of changes to dam‐building policies in four diverse political settings: United States, Australia, Canada, and China. I find intriguing similarities between the focusing projects in these different contexts but also considerable variation in the extent to which they produce policy change. 相似文献
64.
The extent to which North Atlantic Holocene climatic perturbations influenced past human societies is an area of considerable uncertainty and fierce debate. Ireland is ideally placed to help resolve this issue, being occupied for over 9000 yr and located on the eastern Atlantic seaboard, a region dominated by westerly airflow. Irish bog and lake tree populations provide unambiguous evidence of major shifts in surface moisture through the Holocene similar to cycles recorded in the marine realm of the North Atlantic, indicating significant changes in the latitude and intensity of zonal atmospheric circulation across the region. To test for human response to these cycles we summed the probabilities of 465 radiocarbon ages obtained from Irish archaeological contexts and observe enhanced archaeological visibility during periods of sustained wet conditions. These results suggest either increasing density of human populations in key, often defensive locations, and/or the development of subsistence strategies to overcome changing conditions, the latter recently proposed as a significant factor in avoiding societal collapse. Regardless, we demonstrate environmental change is a significantly more important factor in influencing human activity in the landscape than has hitherto been acknowledged. 相似文献
65.
Jute cultivation in the Lower Amazon, 1940–1990: an ethnographic account from Santarém, Pará, Brazil
The Amazon region has long been a place of economic booms and busts. Much attention in the historical literature on Amazonia has focused on the largest and most famous regional economic boom, the Rubber Boom, a period of sustained economic prosperity for some from 1860 to 1920. Other ‘booms’ have occurred in the region as well and this paper describes and discusses one of those others. The paper demonstrates how an export economy in a global periphery (coffee in Brazil) affected economic development in a periphery of that same country and makes a methodological contribution by demonstrating how ethnographic research can contribute to an understanding of a historical period when the paper trail is weak.Jute, a fiber crop, dominated agricultural production along the Amazon River floodplain in the reach between Manaus and Santarém, Brazil, from the late 1930s until the early 1990s. The crop was introduced to the region by Japanese immigrants in order to supply the demand for jute sacking in the south of Brazil where such sacks were used to package commodities, especially coffee. Local smallholder cultivators grew and processed jute, production being mediated initially through Japanese middlemen, later by Brazilians. Poor fiber quality, several external shocks, including the removal of tariffs on imported jute, and especially changes in commodity packaging such as bulk handling and the use of synthetic sacks instead of jute sacks for the transport of coffee beans, the Amazonian jute market collapsed in the early 1990s. Despite its collapse, the legacy of the boom is still evident in the physical and social landscapes in the region. 相似文献
66.
The marine trophic levels targeted during Swift Creek (AD 300–700) and Savannah (AD 1200–1500) occupations at the Cathead Creek site (9Mc360) and at two sites from the Kings Bay Locality (9CAM171a, 9CAM177), coastal Georgia, USA, differ in a consistent temporal and spatial pattern. Vertebrate and invertebrate remains from these three coastal sites contain similar suites of estuarine animals. However, Swift Creek peoples at these distinct hydrological settings obtained more biomass from fishes and less from molluscs compared to the subsequent Savannah occupants. The two Swift Creek faunal collections are less rich, more diverse, and more equitable than the two subsequent Savannah collections regardless of location. Furthermore, the mean trophic level is higher in the Swift Creek collections compared to the Savannah ones at both locations. These observations apply to both biomass and Minimum Number of Individuals. These differences likely are defining characteristics distinguishing the Swift Creek and the Savannah economies. More research is needed to determine the extent to which these temporal and spatial patterns are attributable to environmental and cultural variables. 相似文献
67.
经济行为与环境变化:清前期台湾野生鹿消失探析 总被引:3,自引:0,他引:3
鹿曾经是台湾数量最庞大的野生动物群之一。明末以来,随着台湾贸易交流的活跃,鹿成为大宗出口商品,土著居民由原先捕鹿作为民生用品逐渐发展至为市场服务;清前期大陆移民入台的农业垦殖又破坏了鹿原有的生态环境。人类经济行为引发的环境变化,最终导致了野生鹿在台湾渐趋消失。 相似文献
68.
69.
Developing a framework of Holocene climatic change and landscape archaeology for the lower Gulf region, southeastern Arabia 总被引:1,自引:1,他引:0
A.G. Parker G. Preston H. Walkington M.J. Hodson 《Arabian Archaeology and Epigraphy》2006,17(2):125-130
Geomorphological and geoarchaeological studies from the lower Gulf region of southeastern Arabia are increasing our knowledge of hydrological, ecological, and aeolian changes during the Holocene. Preliminary analyses of sediment records from two palaeolakes in the United Arab Emirates are presented, highlighting the potential of these sediment sources for providing high-resolution decadal studies of climate change and landscape evolution over the past 10,000 years. In order to study the society-environment relationship in this marginal region, a framework of environmental change is being developed against which the archaeology of the region can be set. 相似文献
70.
“杨各庄”等地名的地理分布及其音变的历史意义 总被引:1,自引:0,他引:1
华北地区及华东地区地名中多见“X各庄”和“X家庄”。该地区中,从西北部到东南部,“X各庄”的比例逐渐增多,而“X家庄”的比例逐渐减少,形成了一个语音渐变的地理连续体。这种特殊现象的形成是由于该地区西北部较频繁地受到北方阿尔泰语系诸语言的影响,而相对来说,东南部则较少受到这种影响。地名中的“各”仍然保留了中古汉语“家”的舌根音塞音声母[k-]。这种明显的地域互补分布表明了北方汉语方言前高元音前面的舌根声母转变为舌面音的力量来自于外部的人文影响,而非内部语言音变。 相似文献