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A new genus Webbyites from the Lower and Middle Ordovician of Bohemia is described. Its planar, feather-like benthic colonies (or their parts) display possible hydrozoan affinites. Webbyites is interpreted as an inhabitant of the littoral and sublittoral environment, with high energy, oscillating to current zones.  相似文献   
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The article deals with the role of the Queen's representative when no one party or stable alliance has a majority in the lower house of parliament Two types of questions are likely to arise: one set of problems relates to the choice of government and the role of the ministry in office when an election produces a hung parliament; the second concerns the situations where a head of government who has suffered (or fears) defeat in the lower house requests a dissolution and new elections. The author examines precedents that have occurred since Evatt and Forsey wrote on the subject and proposes some guidelines for the exercise of the governor's reserve powers.  相似文献   
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The political system of Berne during the enlightenment era was dominated by landowning patricians who represented a “republican type of gentry.” These landowners promoted agriculture, traded in grain, wood, wine, invested in cottage industries, and also were involved in foreign military service. In the debates about republican political economy in the 1760s, there was a cleavage within the Bernese aristocracy. On one side, conservatives defended the mercenary service as part of existing political obligations, above all towards France. Against this, the Economic Patriots combated corrupting influences from abroad and censured military service. Socio-moralistic principles, condensed in the term “civic virtue,” ranked higher in the patriots’ eyes than economic or political interests; in a virtuous and frugal republic, there should have been no place for mercenaries. The paper reconstructs these arguments over key decades in the eighteenth century.  相似文献   
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路德维格一世在1825—1848年间任巴伐利亚的国王,1863年他从尼姆鲁德遗址获得了7个浅浮雕艺术品。最近进行的对这些浮雕作品的修复使得其上残留的原始彩绘重新被人们发现,本文讨论了对这些原始彩绘面貌进行重现的可能性及存在的相关问题。  相似文献   
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Extracting cores from a tree using an increment borer has been standard practice in dendrochronological studies for a long time. Although empirical rules exist regarding how many samples to take and which methodology to apply, comparatively few studies provide quantification of the similarity of relative tree-ring-widths (TRW) around the stem circumference. The aim of this study was therefore to precisely measure the similarity of standardised TRWs around the stem circumference and to provide objective suggestions for optimal core sampling of Norway spruce (Picea abies Karst. [L.]) and European beech (Fagus sylvatica L.) growing in Central European temperate forests. A large sample of cross-sectional discs was used from Norway spruce and European beech trees growing on various slopes, at different altitudes and biogeographic regions across the Czech Republic and Slovakia. The similarity of TRWs measured in different coring directions was analysed by testing the relativized TRW around the trunk (rTRW). Comparison of rTRWs revealed no significant differences between coring directions, indicating that the relative increment was the same around the radius. The results also showed the high similarity between the rTRWs to be independent of both slope inclination and altitude. Moreover, the reconstruction of proportional tree diameters and basal areas backward in time from one core sample and one measurement of tree diameter (basal area) at the time of sample extraction is possible with reasonable precision.  相似文献   
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Abstract

Urban agglomeration economies make cities central to theories of modern economic growth. There is historical evidence for the presence of Smithian growth and agglomeration effects in English towns c.1450-1670, but seminal assessments deny the presence of agglomeration effects and productivity gains to Early Modern English towns. This study evaluates the presence of increasing returns to scale (IRS) in aggregate urban economic outputs—the empirical signature of feedbacks between Smithian growth and agglomeration effects—among the towns of 16th century England. To do so, we test a model from settlement scaling theory against the 1524/5 Lay Subsidy returns. Analysis of these data indicates that Tudor towns exhibited IRS—a finding that is robust to alternative interpretations of the data. IRS holds even for the smallest towns in our sample, suggesting the absence of town size thresholds for the emergence of agglomeration effects. Spatial patterning of scaling residuals further suggests regional demand-side interactions with Smithian-agglomeration feedbacks. These findings suggest the presence of agglomeration effects and Smithian growth in pre-industrial English towns. This begs us to reconsider the economic performance of Early Modern English towns, and suggests that the qualitative economic dynamics of contemporary cities may be applicable to premodern settlements in general.  相似文献   
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