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61.
流动要素是区域一体化发展的先导力量,高铁流和信息流是流动空间的主要物质流态和虚拟流态,对城市网络空间格局产生不同的影响。文章基于2010年、2015年和2020年的高铁客运频次和百度指数数据,运用复杂网络模型刻画了环渤海地区城市跨界网络演化特征。结果表明：①高铁流和信息流视角下跨界发展水平不断提高,二者呈现“趋同”演变,共同作用下形成五大增长极。②网络联系特征存在差异。相较信息流而言,高铁流跨界融合趋势更为明显,城市功能差异逐渐弥合,扁平化发展趋势显著。③区域组织结构各异。高铁流和信息流分别呈现“轴带带动”和“中心—腹地”组织模式。④未来环渤海地区在京津冀协同发展引领下实现“点轴—群区”耦合发展。 相似文献
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Grigorii V. Golosov 《Australian journal of political science》2015,50(1):42-60
This article uses a representative sample of elections held in 82 countries of the world (1993–2012) for a statistical analysis of factors that explain the number of parties in national legislative elections. The analysis confirms that the proliferation of candidates and/or parties at the district level contributes to the number of national parties, but the other crucial determinant is party system nationalisation. Several factors that are believed to have an impact on party system fragmentation, such as economic wealth, federalism, linguistic fractionalisation and population size, exert their influence on the number of national parties indirectly, by affecting either the number of district parties or party system nationalisation. At the same time, the significance of many other factors, especially those pertaining to electoral systems and the general political–institutional context, can be properly estimated only if the strongest determinants of system-level fragmentation are controlled for.
本文使用了世界82个国家选举（1993—2012）的代表性样本,对国家立法选举中决定政党数量的因素进行了统计分析。作者认为,地区层次的候选人以及/或政党层出不穷,对全国性政党的数量有所影响,而政党体系的全国化也是一个关键因素。有几个因素估计对政党体系的碎片化有影响,像经济财富、联邦主义、语言及人口规模等等便通过影响地区政党的数量或政党体系的全国化,而对全国性政党的数量产生了间接的影响。与此同时,其他许多因素,尤其是涉及选举制度以及一般政治—体制环境的因素,也可以进行恰当地评估,但要以决定了体制层面碎片化的最强因素作为对照。 相似文献
64.
William Margulies 《Australian journal of political science》2015,50(2):241-257
Nagel and Wlezien's ‘vacant centre’ theory suggests that parties close to the centre tend to do better when a political system is highly polarised, creating an empty space in the political market. Cross-nationally, this does not seem to be true when overall system polarisation is used as the independent variable: indeed, there seems to be a slight negative relationship. The farther apart conservative and social democratic parties are, however, the better that liberal parties tend to do. This parallels Nagel and Wlezien's findings for Great Britain specifically.
纳格尔和乌勒子安的“空虚中心”理论指出,在政治体系高度两极化、形成政治市场某种空虚的情况下,接近中心的政党可以做得更好。跨国地看,如果把整个系统的两极化看做自变量的话,这种说法不确,二者之间倒是有些负相关。不过,保守党和社会民主党背道而驰得越远,自由党就干得越好。这倒接近纳格尔和乌勒子安对英国情况的总结。 相似文献
65.
Oriol Caselles Guillermo Martínez Jaume Clapés Pere Roca Maria de la Vega Pérez-Gracia 《International Journal of Architectural Heritage》2015,9(3):310-323
Determining the behavior of a structure estimated by means of finite elements analysis requires not only an in-depth knowledge of its geometry and dynamic properties but also an experimental validation to corroborate the adequacy of the characteristics of the structure. Most of the current structural identification techniques are based on linear methods that call for many measurement points and/or a relative simple structure. Complex structures are somewhat still an unexplored field due to the difficulties with the finite element method and the experimental corroboration of its results. This study presents the use of particle motion computation applied to each structural vibration mode to improve the identification of its dynamic properties, and its application to the Gothic Cathedral of Palma de Majorca (Spain). 相似文献
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ASTRID DE WACHTER PIETER SAEY 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2005,96(2):153-167
In this paper, we reconstruct the trajectories of the southern Low Countries as part of the world‐system and of the Campine, initially as part of the Duchy of Brabant (itself part of a small world‐economy), and later as part of the southern Low Countries, on the basis of a hypothesis that spatial integration/fragmentation involves the upgrading/downgrading of the status of a region in the world‐economy. Spatial integration is conceived of as a process of transformation that (re)produces a coherent pattern of functional shapes. However, the degree of coherence is not necessarily measured by the volume of horizontal relations between the integrated areas. Moreover, a distinction should be made between the factors of transformation that (re)produce the pattern and other factors that produce a configuration that happens to coincide with that pattern. Finally, the world‐economy should be considered as an autopoietic system, functioning in the manner of a transformation matrix. 相似文献
68.
Krister Salamonsen 《European Planning Studies》2015,23(9):1770-1795
Drawing on previous studies related to the evolutionary aspects of regional innovation systems (RIS), this paper examines how an exogenous shock reduced organizational thinness, fragmentation and lock-in and thereby facilitated path creation and RIS emergence in a peripheral region. A longitudinal case study approach, based on primary data from 39 interviews conducted between 2008 and 2012, is used to investigate how a region was affected by the sudden entry and subsequent activity of a multinational oil company. A multi-level analysis illustrates how this exogenous shock facilitated change at the firm, public authority and macro (regional) levels and thus provides a holistic understanding of the complex mechanisms that underlie regional transformation. The analysis illustrates how the entry of the oil company reduced organizational thinness by stimulating the establishment of external firms. The existing regional actors then managed to reduce their organizational lock-in by adapting their skills and resource bases to new knowledge provided through interfirm relationships (reduced fragmentation), and this reduced organizational lock-in and fragmentation ultimately strengthened the industrial structure and further contributed to regional path creation. A number of innovations were observed, and in combination with the “thickened” institutional structure, this represented the means for an emerging RIS. 相似文献
69.
J. K. Kitchen Joan-Pau Rubiés Keith Neilson Joan Maria Thomàs Carl Cavanagh Hodge David Sheinin 《国际历史评论》2013,35(1):99-210
RODERICK STACKELBERG. Idealism Debased: From Völkisch Ideology to National Socialism. Kent, Ohio: The Kent State University Press, 1981. Pp. XIII, 202, 3 plates. $18 (US). Reviewed by Lawrence D. Stokes JEROME CH'EN. China and the West: Society and Culture 1815–1937. Bloomington and London: Indiana University Press. Pp. 488. $25.90 (Can.) Reviewed by David P. Barrett FREDERICK W. MARKS ill. Velvet on Iron: The Diplomacy of Theodore Roosevelt. Lincoln and London: University of Nebraska Press, 1979. Pp. xiv, 247. $15.00 (US). Reviewed by Raymond A. Esthus CRAIG L. SYMONDS. Navalists and Antinavalists: The Naval Policy Debate in the United States, 1785–1827. Newark: University of Delaware Press, 1980. Pp. 252. $17.50 (US). Reviewed by Reginald C. Stuart BERNARD RANSOM, Connolly's Marxism, London: Pluto, 1980. Pp. 126. Reviewed by Desmond Bowen THOMAS A. BAILEY and PAUL B. RYAN, Hitler vs. Roosevelt: The Undeclared War. London: Collier Macmillan, 1979. Pp. 302. £7.45. Reviewed by Ronald W. Pruessen M.A. HICKS, False, Fleeting, Perjur'd Clarence; George, Duke of Clarence, 1449–1478. Gloucester: Alan Sutton, and Atlantic Highlands, NJ. Humanities Press, 1980. Pp. 270. $22.00 (US). Reviewed by Robert Tittler MURIEL ATKIN, Russia and Iran, 1780–1828. Minneapolis: University of Minnesota Press, 1980. Pp. xii, 216. $20 (US). Reviewed by M.E. Yapp J.K. FEDOROWICZ. England's Baltic Trade in the Early Seventeenth Century: A Study in Anglo-Polish Commerical Diplomacy. Cambridge: Cambridge University Press, 1980. Pp. XIII, 334. $35 (US). Reviewed by David S. Macmillan MICHAEL CROWDER. Colonial West Africa: Collected Essays. London: Frank Cass, 1978. Pp. 341. $28.50 (US). Reviewed by John Flint PETER GRAF KIELMANSEGG. Deutschland und der erste Weltkrieg. 2. Auflage. Stuttgart: Klett-Cotta, 1980. Pp. XI, 755. Reviewed by Henry Cord Meyer PIOTR S. WANDYCZ. The United States and Poland. Cambridge, MA: Harvard University Press. Pp. XVI, 465. $28.50 (US). Reviewed by Stanislaw Bobr-Tylingo FREDERICK COOPER. From Slaves to Squatters: Plantation Labor and Agriculture in Zanzibar and Colonial Kenya, 1890–7925. New Haven: Yale University Press, 1980. Pp. xi, 328. $25 (US). Reviewed by Mike Mason DONALD E. QUELLER. Medieval Diplomacy and the Fourth Crusade. London: Variorum Reprints, 1980. Pp. 322. £22. Reviewed by Bernice M. Kacznski CHRISTINE MOSS HELMS. The Cohesion of Saudi Arabia: Evolution of Political Identity. London: Croom Helm, &; Baltimore: The Johns Hopkins University Press, 1981. Pp. 313. $25.00 (US). Reviewed by Ray L. Cleveland CHRISTOPHER H.D. HOWARD, editor. The Diary of Edward Goschen, 1900–1914. London: Royal Historical Society (Camden Fourth Series, Vol. 25), 1980. Pp. xn, 315. £10. Reviewed by Briton C. Busch 相似文献
70.
Tristán Simanauskas Gabriela Cisterna 《Alcheringa: An Australasian Journal of Paleontology》2013,37(1):45-53
Neochonetes sp. (Brachiopoda, Chonetoidea) is recorded from the middle to upper part of the early Permian Río del Peñón Formation, Río Blanco Basin, La Rioja, Argentina. It can be recognised as an r-strategist based on distribution, facies, morphological and ontogenic data which agree with the criteria proposed by Levinton and Alexander for recognising palaeo-opportunistic brachiopods. The new record of an opportunistic chonetid suggests that the group may have evolved this adaptative strategy during the late Palaeozoic. 相似文献