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51.
Erik Thomson 《History Compass》2011,9(4):269-283
Sweden’s victories in the Thirty Years War, and the kingdom’s subsequent half‐century as a great power, continue to intrigue historians. Historians have argued that Sweden’s success resulted from its rapid construction of a military state, with institutions which efficiently directed a large percentage of its available resources to war. Recent work on the military state has confirmed some of this theory, showing that the kingdom was able to shape institutions, but that this development depended upon bargaining and took a long time. Many strains of recent research, however, suggests that the model of the military state might be reaching the end of its useful life, as it attributes too much agency to Swedish statecraft, and too little to regional influences, internal dissent, cultural forces, and religion. 相似文献
52.
Cities are main contributors to the CO2 rise in the atmosphere. It is clear that accurate estimates of the magnitude of anthropogenic and natural urban emissions are needed to assess their influence on the carbon balance. Increasingly the eddy covariance (EC) method is applied in urban environments to quantify CO2 fluxes. The technique has many advantages over other methods. It is a direct measure of the flux that includes all major and minor natural and anthropogenic sources and sinks, is in situ, non-intrusive, quasi-continuous and with proper selection of the footprint can represent a large upwind extent similar to the size of a complete urban neighborhood. This article reviews the basic principles and requirements of the EC technique, discusses its application in the urban context and summarizes observations from over 30 EC systems, primarily deployed in mid-latitude cities. The results show that the urban surface is a net source of CO2, with vehicle exhaust and domestic heating as the major contributors while urban vegetation is not capable to completely offset the anthropogenic emissions. The largest CO2 fluxes have been observed in densely built up locations in city centers, followed by sites within urban core, while the lowest fluxes are found in suburban neighborhoods. The daily net CO2 exchange depicts a strong relationship with vegetation fraction, but not with population density. 相似文献
53.
Erik A. de Graaf 《European Planning Studies》2019,27(1):106-125
The concept of the Daily Urban System (DUS) has gained relevance over the past decades as the entity to examine and explain the functionality of the urban landscape. Daily Urban Systems are usually defined and measured by the strength of commuter or shopper flows between the nodes of the system. It is important to realize that these Daily Urban Systems are the accumulated pattern of individuals making frequent, recurring trips to other localities than their own. Understanding the microeconomic decisions behind these spatial interactions will help in assessing the functional and spatial structure of DUS. In this paper is explored how, based on Dutch empirical data, the individual household’s spatial interactions shape the daily urban system and how the destination of these interactions correlates with personal and spatial variables and motives for interaction. The results show that the occurrence of non-local spatial interactions can be explained by the size-based Christallerian hierarchy of the localities of residence, but that it is the regional population – or market potential – that explains and moderates the sorting of households and the intensity and direction of their spatial interactions in the DUS, matching agglomeration theory. 相似文献
54.
Archaeological and historical investigation of WWII battles fought in the Micronesian archipelago of the Mariana Islands has generally concentrated on the fierce struggles for Saipan, Tinian, and Guam. Smaller islands that were neutralised during the U.S. thrust to establish air bases for the bombing campaign over Japan beginning in 1944 have received less attention, but were a strategic link in the Absolute National Defence Sphere. This paper examines the archaeological evidence of Japanese military planning for the defence of the island of Pagan situated north of Saipan, a battle that was never fought. The strategy based on an analysis of fixed weaponry emplacement appears to have been conceived in terms of engagement evolving from a ‘defence-at-the-waters-edge’ tactic in the southern Mariana Islands towards a ‘defence-in-depth’ posture faced in Iwo Jima and Okinawa. 相似文献
55.
Within the context of the war on poverty and an acknowledgement of the wider global phenomenon of a ‘post-industrial society’, the Australian Labor Party under Gough Whitlam sought out a range of reforming and innovative social policy programs. This article explores the origins of one such program, the Australian Assistance Plan (AAP), and its connections, similarities and differences to the Canada Assistance Plan. Drawing on extensive archival and oral history sources, it offers a comparative analysis of both national programs, then outlines how international social planning and community development ideas, especially from Canada, infused the AAP and its predecessor, the Geelong Experiment. 相似文献
56.
This article examines the effectiveness of UNIDO in addressing the challenges of environmental degradation and in helping developing countries promote sustainable development paths. The analysis suggests that the slow process of integrating environmental concerns in UNIDO's activities was affected both by internal organizational factors, such as the shared professional values in UNIDO's institutional culture and its organizational flexibility and responsiveness, and by factors relating to the external context, including financial constraints and interagency conflicts. In contrast to studies of successful persuasion of ‘epistemic communities’ in international negotiations, this article looks at the factors which have impeded the process of persuasion. At the theoretical level, it seeks to analyse the difficulties of changing the policy agenda in a specific international organization. 相似文献
57.
Agents of Change: The Role of Public Managers in Public Policy 总被引:2,自引:0,他引:2
Our article outlines a number of ways that theories of public management can contribute to the work of public policy scholars. We first outline some of the ways in which public managers have been incorporated into previous work on public policy, and the limitations faced by previous treatments. We then discuss the role that public management plays in the policy process, with a specific focus on managerial quality, networking, and performance evaluation. 相似文献
58.
59.
Understanding sailing conditions is a basic requirement for understanding the two periods of settlement of the distant islands of Oceania, initially from the Bismarck Islands off New Guinea as far as Samoa and later from Samoa throughout East Polynesia. The question of a “navigational threshold” between these two worlds is the focus of this paper. A computer simulation is presented that quantifies the difficulty of sailing virtual canoes in the differing wind conditions in both areas. The model demonstrates substantial differences in ease of voyaging up to and beyond Samoa. That this measure is so markedly different between these two worlds gives support for the hypothesised pause between the discovery and settlement of islands West and East of Samoa. 相似文献
60.
Erik Wishman 《Norwegian Archaeological Review》2013,46(1-2):105-113
Historical evidence of aeolian activity in the outer coastal zone of Jæren, southwest Norway, is presented. Meteorological factors such as wind force and wind direction are discussed. Special attention is devoted to meteorological factors causing drought (evaporation and precipitation) as a necessary condition for the occurrence of sand drift. Several aeolian periods after 6000 BP have been identified in the sediments along the coast of Jæren. It is suggested that the changes in the aeolian activity observed have arisen from changes in the environmental state, such as lowering sea level, climatic variation and environmental stress caused by man's interference in connection with increasing agricultural activity (forest clearing, cultivation and so on). 相似文献