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1.
Faunal remains from archeological sites worldwide, especially feces and regurgitated pellets, are usually subjected to paleoparasitological examination, allowing the identification of past animal parasites. In this study, we analyzed 10 samples of South American camelid dung, which played an important role for the ancient human groups in the South-Central Andes, dated between 341 and 1635 calCE, from the Iluga Túmulos site (Pampa del Tamarugal, Tarapacá region, Atacama Desert, Chile). Microscopy examination revealed parasite remains in seven samples, in which oocysts of Eimeria macusaniensis and eggs of Lamanema chavezi/Nematodirus lamae, Trichuris sp., Moniezia sp., capillariids, strongylids, and unidentified nematodes were found. Although some of these species pose a potential health risk to camelids, most are not considered to be of major zoonotic importance, which could explain the absence of these parasites on human coprolites from this site analyzed previously. This first paleoparasitological study on camelid fecal remains from northern Chile sheds light on the occurrence of gastrointestinal parasites and its relationship with Andean ancient human populations and the environment.  相似文献   
2.
本文采用因子生态分析方法剖析多伦多都市区的居住空间结构。主成分分析表明,家庭构成、年龄构成、职业构成是形成城市居住分异的主要因素。聚类分析表明,家庭构成和年龄构成的分异呈同心园格局,职业构成的分异呈扇形格局。形成这种居住分异格局的机制包括动力机制、管理机制和行为机制三个方面。  相似文献   
3.
The unique geographical environment and the historical waves of immigration of the northern Han Chinese to the Lingnan region have contributed to the development of a complex and unique culture in Guangdong Province. Four ancient ethnic groups, the Zhuang, Cantonese, Hoklo and Hakka, have resided in this area for centuries. As an important part of local culture, toponyms often survive changes in history and can reveal the temporal differences between the past and present in landforms and the spatial differences in the distribution of different ethnic group populations. In this study, two goals were sought: (1) the adoption of spatial smoothing and interpolation methods to reveal the spatial patterns of the Zhuang, Cantonese, Hoklo and Hakka toponyms based on comparisons among the proportions of those who speak various languages and (2) the investigation of the differences among toponymic layers under regional environmental conditions and the influences of geographic factors using an independent samples t-test and a binary logistic regression.  相似文献   
4.
胡兵 《东南文化》2016,(5):51-70
2013年淮安市博物馆发掘淮安王庄村汉墓群,共清理汉墓97座。墓葬形制多样,排列有序,共同位于一大型土墩之下,与淮安地区传统族葬墓有明显的区别。墓葬随葬器物丰富多样,器物组合时代特征明确。从出土器物和墓葬形制及排列情况分析,墓葬时代在西汉早期至东汉时期,墓葬之间在年代上有明显的承继关系,是一处大型汉代土墩墓。该墓地的发掘为研究淮安乃至苏北地区汉代墓葬特别是汉代土墩墓类型提供了极其重要的新材料。  相似文献   
5.
In polycentric urban regions several distinct cities, none of which is dominant, cooperate and compete with each other to attract inhabitants and firms. In such settings city branding strategies do not solely affect one city, but the entire region. We examined how city branding in the face of ecological modernization, that is, delivering higher added economic value, while lowering environmental impacts, is playing out in the Dutch Randstad and the German Rhine-Ruhr. Our findings show that regional identity formation occurs at the sub-polycentric urban region level, coinciding more with (historical) economic profiles than with planning imaginaries. The Dutch cities profile themselves more along the lines of ecological modernization than their German counterparts. Differences between subregions within each polycentric urban region are also noticeable, where more industrialized regions, such as the Ruhr or southern Randstad focus on ‘green’, ‘liveable’ and ‘knowledge-oriented’, while cities with stronger knowledge-intensive sectors portray themselves as ‘smart’ or ‘sustainable’. Cities generally substantiate their profiles through projects, but a significant gap persists between reality and aspirations for improved environmental conditions. This is especially true for the Dutch cities, where many claims, but little visible action can be observed.  相似文献   
6.
王晗  郭平若 《史学月刊》2007,1(4):86-93
陕北长城外地区位于蒙陕农牧交错带,属于典型的脆弱生境地带。清代中央和地方两级政府针对当地汉民承租蒙民土地从事农牧业生产这一环节,在不同时期制定了不同的垦殖政策,经历了封禁、招垦、禁垦、拓垦四个阶段,这既是清政府对陕北长城外地区逐步认识和开发的过程,同时也是该地区生态环境变化的过程。在政策—人—环境相互作用的关系过程中,制度、政策与权力的结合对区域环境变化的影响具有根本性的驱动作用。  相似文献   
7.
论产业集群在提升城市竞争力中的综合功效   总被引:1,自引:0,他引:1  
王东宏  马桂芳 《攀登》2007,26(3):98-100
本文通过对产业集群在提升城市竞争力中的功效分析,指出政府在培育和发展产业集群中应发挥重要作用。  相似文献   
8.
张学海 《华夏考古》2006,(2):102-112
本文分析了聚落群的产生发展过程、基本特征和性质。指出其早期阶段是部落,晚期阶段大都是古国,聚落辟经历了从部落到国家的发展过程。论述了国家的起源。认为酋邦和消亡阶段的部落无大区别,中国不必划分酋邦时期。  相似文献   
9.
揭示家庭生命周期对旅游者行为的影响可以为家庭旅游精准营销提供依据.将城镇居民的家庭生命周期分为筑巢期、满巢Ⅰ期、满巢Ⅱ期、空巢期4个阶段,探究家庭生命周期对其旅游行为的影响,发现:①家庭生命周期影响旅游者的目的地选择行为,不同家庭生命周期旅游者的景区到访率距离衰减速率不同;②家庭生命周期影响旅游者的旅游活动类型偏好,满...  相似文献   
10.
Summary : The article explores deployment of the Darwinian narrative of the “natural history of humanity” in Russian physical anthropology in the late nineteenth to the early twentieth century. It traces two narratives developed by the leading Russian school of physical anthropology: one narrative advanced a universalist vision of collective scholarly enterprise working toward clarifying the missing links in the a priori accepted developmental evolutionary model. The other constructed a new language that undermined the idea of species/subspecies/races/nations/ as stable, externally bounded, and internally homogeneous units and attempted to rationalize imperial hybridity. The article's main focus is on the latter classificatory narrative, its relational methodology, and the protostructuralist units of comparison that it produced.  相似文献   
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