1961年美蒋关于外蒙古联合国代表权问题的争论

20世纪60年代,国际社会支持中国恢复联合国席位的力量日益增加,为了阻止中国进入联合国,美国搬出外蒙古问题,企图通过让外蒙古进入联合国这一“迂回”手法,达到保护国民党席位的目的。在策划该计划的过程中,美蒋发生了激烈争吵。经过数轮讨价还价,美蒋最终达成妥协,从而为外蒙古进入联合国打开了方便之门。     

The fish of Lake Titicaca: implications for archaeology and changing ecology through stable isotope analysis

Research on past human diets in the southern Lake Titicaca Basin has directed us to investigate the carbon and nitrogen stable isotopes of an important dietary element, fish. By completing a range of analyses on modern and archaeological fish remains, we contribute to two related issues regarding the application of stable isotope analysis of archaeological fish remains and in turn their place within human diet. The first issue is the potential carbon and nitrogen isotope values of prehistoric fish (and how these would impact human dietary isotopic data), and the second is the observed changes in the fish isotopes through time. Out of this work we provide quantitative isotope relationships between fish tissues with and without lipid extraction, and a qualitative analysis of the isotopic relationships between fish tissues, allowing archaeologists to understand these relationships and how these values can be applied in future research. We test a mathematical lipid normalization equation to examine whether future researchers will need to perform lipid extraction procedures for Lake Titicaca fish. We also analyze a number of aquatic plants to better understand the range of isotopic signatures of the Lake Titicaca ecosystem. We use these data to better understand prehistoric human diet and the role that fish may have played in the past as well as potential changes in local lake ecology through time.     

Plant processing strategies and their affect upon starch grain survival when rendering Peltandra virginica (L.) Kunth,Araceae edible

There is a long history of human interaction with plants of the Aroideae subfamily (Araceae). Despite these plants' chemical defenses against animal and vegetal predation, humans have targeted their starchy corms, tubers and rhizomes for dietary purposes. In the Eastern Woodlands of North America, early Europeans described the Native population as utilizing the highly acridic Peltandra virginica (arrow arum) for subsistence needs. In order to render this resource edible, however, the acridic principle first needs to be eliminated. Our study investigates the affect these processing activities have on the integrity of arrow arum starch grains. Findings from this study demonstrate that environmental variables specific to individual processing procedures may be more influential on starch grain survival than simply the temperatures reached during cooking.     

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.     

Investigation of palaeodiet in the North Caucasus (South Russia) Bronze Age using stable isotope analysis and AMS dating of human and animal bones

This paper addresses the question of human palaeodietary adaptation in the Eneolithic and Early Bronze Age periods of the North Caucasus (South Russia) using stable isotope analysis. One of the key questions is the presence of fish in the diet. AMS radiocarbon dating of archaeological bone collagen has also been carried out to investigate potential radiocarbon reservoir effects in human skeletal material as a result of an aquatic diet. A fish component has previously been suggested in the diet of Iron Age and Bronze Age humans across Eurasia by isotopic research and radiocarbon dating of contemporaneous human and animal bones. In the North Caucasus however, isotopic data is scant. This study presents a new set of stable isotopic data from several Early Bronze Age sites, mainly belonging to the Maikop culture of the North Caucasus. The results show that the diversity in climate and environment across the northern Caucasus may be a causal factor for the patterns observed in the stable isotope values of terrestrial herbivores. This affects the isotopic values of the humans consuming them. The differences in δ¹⁵N and δ¹³C ranges of both humans and fauna were found to correlate strongly with geography and climate; the most enriched isotopic values are found in the dry steppe areas to the north. Overall, a relatively high enrichment in δ¹⁵N values of humans compared to local terrestrial herbivores and carnivores was observed. This indicates that aquatic resources were probably part of the Bronze Age diet in the region although the extent of this needs further investigation. The dramatic effect of environmental factors on isotopic values in the Early Bronze Age of the North Caucasus illustrates how confident conclusions cannot be drawn on the basis of a small number of samples from widely differing regions and time periods. Radiocarbon dating can provide a useful tool for identifying dietary derived reservoir ages in humans, potentially caused by a fish diet. With two possible exceptions, the nine human–animal bone pair dated as part of this study showed no consistent indication for a consistent reservoir effect.     

在“南水北调中线工程考古发现与研究学术研讨会”上的讲话

本文为作者代表中国考古学会在"南水北调中线工程考古发现与研究学术研讨会"上的讲话:一、为什么要保护好文物;二、考古学在文物保护中的位置;三、考古学如何在文物保护中发挥作用;四、此次会议取得的成果。     

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。