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1.
ABSTRACT

Radiographic imaging is used to determine the techniques used to form vessels from two contemporaneous Late Archaic shell rings in coastal Georgia. These data, in concert with decorative and technofunctional data, suggest that different potting communities occupied each ring. The presence of different communities at each ring corresponds with larger regional patterns in which localized socio-political bodies developed during the Late Archaic. The findings offered in this paper suggest that localized groups did not exist in isolation but rather lived near one another for centuries.  相似文献   
2.
This paper examines 20th-century environmental change in the subhumid southwestern Canadian Plains, specifically in relation to the dominant agricultural landscape and to the climate of the past millennium as reconstructed from proxy data. Anthropogenic landscape change in the last century has been dominated by the conversion of grasslands to ranchland and cropland. This has heightened landscape vulnerability to climatic fluctuations, especially drought. Instrumental climate records, extending back to the 1880s, highlight the variability of precipitation in this region. Proxy environmental records, derived from lake cores and tree-ring analysis, extend this picture into the last millennium and show that drought has been a recurring theme of the Prairie climate. Tree-ring records suggest that some droughts in the last millennium may have exceeded in severity any in the instrumental record. The sustainability of Prairie agriculture depends on adaptation to the amplitudes of climatic change and variability evident in these proxy records. Dans cet article nous examinons les changements environnementaux qui sont survenus pendant le 20ème siècle dans les plaines canadiennes sèches du sud-ouest, spécifiquement par rapport au paysage agricole dominant et au climat du dernier millénaire qui a été déterminéà partir de données de procuration. La transformation des prairies en ranchland et cropland est le changement du paysage le plus important dont l'homme est responsable, pour le dernier siècle. À cause de ce changement, le paysage est plus vulnérable aux fluctuations climatiques - à la sécheresse en particulier. Les enregistrements instrumentaux de climat, qui reculent jusqu'aux années 1880, mettent en évidence la variabilité des précipitations dans cette région. Les enregistrements environnementaux de procuration, dérivés d'échantillons pris dans les lacs et de la dendroanalyse, étendent cette image dans le dernier millénaire et prouvent que le thème de la sécheresse est apparu souvent dans les analyses du climat du prairie. Les enregistrements de boucles d'arbre suggèrent que, dans le dernier millénaire il y avait des sécheresses qui étaient peut-être si sévères que les instruments n'ont pas pu les enregistrer. Si l'agriculture veut survivre comme entreprise dans les prairies, il faudra qu'elle s'adapte aux amplitudes de changement et de variabilité du climat qui ont été constatées dans les données de procuration.  相似文献   
3.
《古文尚书》辨伪是清代学术史上的重要课题。清初学者阎若璩作《尚书古文疏证》,判定今本《古文尚书》为伪书,而同时代的学者毛奇龄则作《古文尚书冤词》,极力为《古文尚书》辩护,从而引发了一:场学术公案。《古文尚书》之伪,今日已成定论。《冤词》成为毛氏学术生涯中的败笔,其结论本身已无价值可言。但是他在论辨当中崇实黜虚,纠正了不少辨伪者的错误,从学术史的角度讲,这部表面看起来与辨伪针锋相对的《冤词》,恰恰对《古文尚书》辨伪的深入产生了重要影响。  相似文献   
4.
Drawing upon qualitative data, this article examines how tree planters in northern Ontario, Canada engage with liminality in terms of gender, class, age and space. In doing so, it provides insight into concepts of gender liminality and the variegated experiences of males and females in liminal space. The article focuses on four aspects of the liminal engagement. First, the spaces of tree planting are liminal as they are marked by homelife and worklife, but dominated by neither. Second, gender performances are liminal, as males perform masculinities seldom necessary or appropriate – yet often valorized – in their permanent communities, while females (who make up nearly half of the workforce) are offered opportunities to work and succeed in a traditionally male industry. However, success often requires that they adopt certain masculine traits. Third, most tree planters are in the interstitial age of ‘youth’, somewhere between adolescence and adulthood. Finally, tree planters are generally members of affluent urban middle-classes, yet the work they perform is more readily associated with rural or peripheral working-classes.  相似文献   
5.
结构稳定性是评估文物安全的重要方面。三星堆二号坑出土1号青铜树体量庞大、结构复杂,且存在腐蚀、裂纹等危险因素,为了充分记录、评估其保存状况,本研究在原始几何形状和内部构造的基础上,利用三维数字建模技术,建立其几何模型和数值模型,并估算出青铜神树的质量分布和质心位置等无法实地测量的数据,并使用有限元方法,从应力和位移的角度分析青铜树的静置状态下的安全性。经过有限元模拟和材料力学简化计算,发现龙身和树干连接处、树枝根部应力较大,是易受损区域。  相似文献   
6.
New Zealand has some of the most active areas of rhyolitic volcanism in the world and this has produced numerous obsidian sources in the northern half of the North Island. In total archaeologists have recognized 27 named locations from which obsidian can be obtained scattered across 4 geological source regions. Shortly after colonization in the late 13th century AD Polynesian settlers began transporting this material some thousands of kilometers throughout the country and across the sea in small quantities to distant neighbors in the Kermadecs and Chatham islands. Although considerable research has been conducted on obsidian sourcing in New Zealand the complexity of geochemical source discrimination and the lack of a practical method of non-destructive geochemical analysis has hindered progress. We present the results of our use of PXRF to provide geochemical data on New Zealand obsidian sources and to compare the use of discriminant analysis and classification tree analysis to discriminate among sources and attribute archaeological samples to sources. Our research suggests that classification tree analysis is superior to discriminant analysis in sourcing studies. A large case study using an important settlement phase site (S11/20) from the Auckland region demonstrates the utility of the methods and the results support a model of high degrees of mobility and interaction during the early settlement of New Zealand.  相似文献   
7.
Wooden snuff trays from San Pedro de Atacama (SPA) in northern Chile are objects of particular museological value. Computed tomography (CT), a non-destructive analytical technique useful in the analysis of archaeological objects in which physical tampering is not desirable, was used to study provenience of wood, quality of craftmanship, taphonomic processes and nature of gemstone inlays in a group of snuff trays. While wood used in the manufacture of trays was mostly exogenous to SPA, gemstones used in inlays were likely of local origin. These findings support the active exchange of goods proposed for the south-central Andes region. Several features revealed in the trays support the view that craftsmen producing them were skillful artisans.  相似文献   
8.
Abstract

A theme of interest in the process of democratic consolidation among comparative politics scholars is how political and nonpolitical variables, including economic and class issues, interrelate. Whereas the “transitions to democracy” literature conceptualizes the emergence of democratic regimes to be primarily an elite-driven political process, the actual consolidation of a democratic regime requires the active organization of civil sectors that then learn to live by and accept the outcomes of uncertain democratic governance. This “granting of stakes” in the new regime is perhaps best accomplished by the aggregation and articulation of interests among labor and business sectors in “civil society”—a term usefully defined by Alfred Stepan (1988) as manifold social movements from all classes organized to promote their interests. It is in this area that the interplay of political and economic interests is most clearly visible. Indeed, although elites can make decisions about the institutional, political, and economic future of a country in transition, they cannot guarantee that those decisions will be implemented or supported by the populace and that the incipient democratic system will stabilize. What is frequently neglected in elite-centered accounts of democratic transitions, then, is civil society and its links to elites through popular organizations.  相似文献   
9.
Education for Global Citizenship is about living as though the future mattered. This evaluates learner reactions to a tree-planting exercise that invites reflection upon hopes for the world, personal responsibilities and acting locally while thinking globally. Participant hopes concerned: environmental sustainability, peace on earth, then the welfare of future generations and personal wellbeing. Global citizenship concerns included sustainability, social justice, interdependencies and personal responsibilities. Some participants envisaged exercise outcomes to be mainly practical, others personal, such as reflection on lifestyle choices. Off-campus sessions generated higher grades, more concern for giving back to/defining a role in nature and volunteering.  相似文献   
10.
Abstract

Here we document the investigation of the first Australian Aboriginal mortuary tree found since the early 20th century and the first studied by archaeologists and Aboriginal traditional owners. In 2001, a landowner discovered Aboriginal skeletal remains inside a fallen, dead tree while evaluating the tree’s potential as firewood, leading to the investigation of the site. The tree was located near Moyston, in southwestern Victoria, in traditional Djab Wurrung country and held the partial skeletons of three Aboriginal individuals—two adults and a child. Clay pipe-stem wear on several teeth belonging to the two adults indicates that these remains were broadly contemporaneous secondary placements from the early post-contact period (ca. a.d. 1835–1845). Along with five additional mortuary trees within 30 km of the Moyston tree, this practice constitutes a previously unknown traditional mortuary pattern and contributes to our understanding of the complex mortuary behavior of the Aboriginal people of southwestern Victoria.  相似文献   
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