Introducing δSr analysis in archaeology: a demonstration of the utility of strontium isotope fractionation in paleodietary studies

Isotopic methods are widely used in archaeology to investigate paleodiet. Here, we present a new method to identify trophic level in archaeological human populations and to investigate paleodiet. We demonstrate that strontium isotope compositions (reported as δ^88/86Sr) vary in a mass-dependent manner with increasing trophic level and can elucidate paleodiet in archaeological human populations. We present new mass-dependent strontium isotope data from tooth enamel and bone from individuals buried during the Late Intermediate Period (c. AD 1000–1300) in the large cemeteries of Chiribaya Alta, Chiribaya Baja, San Gerónimo, and El Yaral in the Ilo and Moquegua Valleys of southern Peru. We compare these data to radiogenic strontium isotope data (⁸⁷Sr/⁸⁶Sr) and light stable isotope data (δ¹⁵N_col and δ¹³C_col) from the same individuals to investigate geologic variability in strontium sources as well as marine food consumption among the Chiribaya. Our results demonstrate the utility of measurements of strontium isotope fractionation as a new tool for archaeological investigation of paleodiet. Importantly, this new technique can be used to generate paleodietary (δ^88/86Sr) and paleomobility (⁸⁷Sr/⁸⁶Sr) data from the same specimen, minimizing destructive analyses of invaluable archaeological material, and provides a new way to examine paleodiet through hydroxyapatite, which is particularly important when collagen is poorly preserved.     

Micromorphological perspectives on the stratigraphical excavation of shell middens: a first approximation from the ethnohistorical site Tunel VII,Tierra del Fuego (Argentina)

Due to their problematic stratigraphy, shell middens have traditionally been excavated by artificial stratigraphical cuts. This approach has often led to the obliteration of the original depositional sequence, removing important information regarding depositional and post-depositional processes, and human frequentation. Since the 1970s, an Argentinian team has been excavating archaeological shell middens in the Beagle Channel with a detailed stratigraphical approach, based on the excavation of actual depositional units (peeling), rather than artificial cuts. In the 1980s, Spanish archaeologists joined the Argentinean team and launched a series of new projects involving the excavation of ethnohistorical Yamana fisher-hunter-gatherer sites. The first excavated midden site was Tunel VII, from which two monolith columns of about 50 cm each (C11 and C12) that spanned the whole stratigraphy were extracted. The two columns were consolidated with resin, and two series of thin sections produced to corroborate stratigraphical observations made in the field, and to verify hypotheses related to the formation of archaeological shell midden sites. We present here the first results obtained from the microscopical observation of seven thin sections from column 11 (West column), extracted from a portion of the profile originally described as corresponding to the hut entrance and associated floor. The observation of microscopical features invisible in the field has provided supplemental information about the depositional and post-depositional processes affecting shell midden sites. We have also preliminarily defined a number of micromorphological characteristics identifying human activities such as discrete shell deposition events, phases of preparation of the hut floor, and compression by repeated trampling. Finally, we have explored the possibility of establishing some guidelines to characterise the length and character of frequentation phases of the site previous to its final abandonment at the beginning of the 20th century.     

危险的愉悦：早期美国华侨赌博问题研究（1850—1943年）

论文勾勒了早期美国华侨的赌博情形,分析了他们参赌、设赌的各种原因和社会危害,探讨了华侨社会、中美两国政府对华侨赌博问题管理和控制的效能。作者认为,早期大部分美国华侨热衷于赌博,主要是赌博为特定历史场景中的华侨提供了一种重要的社会活动方式,被他们视为实现黄金梦的一条捷径。经济利益的驱动致使华侨热衷开设赌馆,也使华侨堂号勾结警察,暴力护赌。赌博对美国华侨社会的危害是巨大的,它使一些华侨不能履行自己对家庭的义务和责任,还引发了吸毒、盗窃、＂堂斗＂等其他社会问题。在控制赌博的行动中,由于华侨社团和中国驻美领事权力有限,威望不高,而华侨赌商和堂号与美国警察互相勾结,致使禁赌行动难有成效。     

炒杂碎：美国餐饮史中的华裔文化

本文通过美国华人杂碎馆兴衰史,从一个新的视角来说明中餐馆在美国的兴起和普及。杂碎馆反映了华裔文化移植到美国社会并进一步在那里发展的过程。在美国,饮食是最早而且可能是最有代表性的海外中华文化的标志。华人的饮食文化伴随着他们的生活方式、劳动和职业技能、经商能力和资本、家庭及其他文化传统与华人移民一起进入美国。炒杂碎是美国社会族裔文化如何形成的一个有示范性意义的例子。     

拉丁美洲军人干政国家的军人与民主

拉丁美洲军人干政国家中的军人是影响国家民主和民主化的重要因素之一。短期来看,拉丁美洲军人干政国家中军人对民主化的作用是不确定的：军人有时安邦定国为民主化奠定基础,有时践踏宪政成为民主化的障碍。军人干政不代表堵死民主化之路;军人返回军营也不代表通向民主化坦途。长远来看,军人干政不具备终极合法性,民主巩固的结果将是文人领军和宪政。在民主转型中的拉丁美洲军人干政国家,一方面民主转型是大势所趋,另一方面军人干政并未销声匿迹。民主的推行需要合理利用军人的积极作用,以形成独特的民主模式。     

美国少年历史小说题材创作

历史小说是美国少年小说的一个重要类型。自20世纪30年代以后,反映少年生活的历史小说在美国不断问世,并于60、70年代进入繁荣阶段。本文旨在通过梳理美国少年历史小说的发展脉络,探讨其潮流及特点,如发展阶段、文化内涵、审美价值观等,说明其文学成就与影响,同时加深我国对美国少年历史小说的了解和研究。     

Measuring Paleoindian range mobility and land-use in the Great Lakes/Northeast

Distance and direction to source data were compiled on the main toolstones employed at 83 Paleoindian sites with concave-based points (ca. 11,000–10,000 B.P.) from across the recently deglaciated Great Lake-Northeastern area of North America. These data were used in order to more rigorously evaluate several much debated ideas about annual range mobility scale and land use patterns and how they changed over time as these groups colonized and settled into the area. Movements are significantly biased to north–south axes, strongly suggesting these represent mainly seasonal moves and procurement of toolstones during regular travels rather than by specialized task groups. Means of comparing the scale of range mobility to ethnographic norms are explored and the results clearly show that these groups, especially the earliest occupants, had large annual range mobility scales and distinctive patterns of land use that are rarely seen or approached historically. They had to have been intensively targeting widely spaced but relatively abundant resources on the landscape. The only ethnographic groups who come close to such patterns historically were all caribou hunters, a perspective consistent with the idea these groups regularly exploited that resource. As long suggested, these land use patterns are probably related to the colonization of new lands in which there were little or no existing populations.     

Stable isotopes and human diet in central western Argentina

Central western Argentina is the southern boundary of prehispanic maize in the archaeological record. This paper explores the stable isotope information from human bone (δ¹³C, from collagen and δ¹³C from apatite) and tooth (δ¹³C from enamel) samples in order to characterize the temporal and spatial trends of these isotopes and to understand them in terms of human diet. We analyzed 104 human individuals from the last 6000 years. Using the Kellner and Schoeninger (2007) model the results shows a high variation in human diet with few human individuals with a notably high significance of C₄ plants (probably maize) as an energy source and these samples have a chronology around ca. 1000 years BP. On the other hand a high variation in an individual’s dietary life history is shown by differences between δ¹³C collagen, apatite and enamel.     

Barrio resurgence in Buenos Aires: Local autonomy claims amid state-sponsored transnationalism

This paper argues that observing neighborhood movements through the lens of territorial state restructuring holds theoretical promise. Contemporary struggles over municipal decentralization need to be located within broader state re-scaling processes. Seeking to contribute a Latin American perspective to the largely Anglo-American field of urban neoliberalization research, this study engages with the emergence of local autonomy claims in Buenos Aires, Argentina. Middle-class activists and organizations advanced such claims against the background of thorough transnationalism, in what may be interpreted as a localist political reaction to the socio-spatial consequences of urban and state restructuring. Field evidence is used to assess the ultimate political efficacy and democratic implications of their political agency, particularly in what concerns municipal decentralization. It is argued that curtailing the empowerment of barrio districts were the following conditions: mayoral opposition to communal reforms; ongoing cross-scalar tensions between the city and national government; and the barrio-centric issue framings of activists, which hampered social recruitment in an increasingly heterogeneous and transnationalized urban space.     

‘Personifying the coloured community’: Sonny Leon and the ambiguities of the politics of co-option and resistance in the apartheid state

Abstract

The traditional focus regarding the Angolan Civil War, 1974–1976, has been on the nature of Soviet and Cuban involvement, the American response to communist activities, and South Africa's invasion. A point often mentioned, but rarely elaborated upon in the literature, is the degree to which the United States of America (USA) encouraged South Africa to intervene in the Angolan conflict. This paper investigates the extent and nature of American collusion with South Africa in the civil war, and the degree of complicity of senior American officials. The paper argues that on balance, the evidence suggests that senior elements of the United States executive branch, covertly and informally, colluded with South Africa. South African politicians overestimated the depth and extent of American support for its intervention, and when the USA ceased its assistance, they felt betrayed by Kissinger.