Genetic analysis of wheat landraces enables the location of the first agricultural sites in Italy to be identified

We typed five microsatellite loci in 52 landraces of Italian emmer wheat to determine if genetic analysis of cereals can provide information relevant to the spread of agriculture. Each of the five loci was polymorphic with 43 allele combinations identified in the 52 landraces. The allele combinations fell into two groups. Group 1 comprised 27 genotypes found in 42 landraces and Group 2 comprised 15 genotypes found in 10 landraces. The landraces with Group 1 genotypes showed a strong correlation between geographical and genetic distances (r = 0.601, p < 0.001) but those with Group 2 genotypes did not (r = 0.116, p = 0.244). We inferred that the Group 1 landraces might therefore retain a phylogeographical structure that reflects ancient events. We present a phylogeographical model for the spread of agriculture that enables the point of origin of crop cultivation to be predicted by comparison between the genetic and geographical distances between landraces. We applied this model to the Group 1 landraces by positioning 131 hypothetical points of origin around the coastline and northern border of Italy. The highest correlation coefficients between genetic and geographical distances were seen for hypothetical points of origin located on the coast of northern Puglia. We repeated the analysis with 1040 hypothetical points of origin located within the Italian peninsula. Again, the highest correlation coefficients were located in northern Puglia. These predicted points of origin correspond with the location of the earliest agricultural sites in Italy. The results show that plant genetics can be used to study the spread of agriculture.     

Empire and the state: a critical theoretical assessment

In recent years there has been increasing use of the term ‘empire’ to describe US primacy in world affairs. This should not be viewed merely as an indictment of US power: there are genuine insights to be gained from the study of imperial formations in contemporary politics. Yet there remains confusion and disagreement over the true meaning of ‘empire’. Progressive schools of thought in the academic discipline of international relations can facilitate a fresh understanding of ‘empire’—one that is suited to the complexities of the contemporary global scene.     

Rock Art and Ritual: An Archaeological Analysis of Rock Art in Arid Central Australia

Rock art researchers throughout the world have explicitly or implicitly invoked ritual as an activity associated with the production of rock art but the articulation between the structure and composition of rock art assemblages and ritual behaviour remains poorly understood. Anthropologist, Roy Rappaport (1999) argued that all ritual, whatever the content or focus, has a universal structure. We review this proposition in the context of ritual studies and propose a method aimed at assessing the potential for identifying ritual structure in rock art assemblages. We discuss an archaeological analysis undertaken on the rock art assemblages in arid Central Australia, which aimed at distinguishing such a ritual structure among engraved assemblages, likely to have a Pleistocene origin, as well as more recent painted, stencilled and drawn assemblages. This analysis, despite its limitations, provides the foundation for developing a model, which will enhance the understanding of the relationship between the production of rock art and ritual.     

The Fate of Academic Freedom in the Age of High Liberalism: The Case of Charles Beard

In the early years of the Cold War, the American historical community fought vigorously over the reputation of Charles Beard. Midwestern progressives defended his legacy, while postwar liberals denounced Beard as an isolationist whose scholarship had not prepared the United States to fight either German fascism or Soviet communism. This essay explores the attack on Beard, its implications for academic freedom, and its role in silencing critics of the Cold War.     

Sexual citizenship, political obligation and disease ecology in gay Seattle

While rights and freedoms of sexual citizenship have been foregrounded in geography, vaguer attention has been given to questions of political obligation. Feminist work on political obligation, grounded with a framing in political ecology of disease, however, provides a means to correct this neglect. Empirically, I narrate a story of local public health politics in Seattle, WA. There, a cultural panic played out in the media over the alleged failure of political obligations by gay men around sexually transmitted infections. Political obligation and ecology usefully extend the concept sexual citizenship on its own terms by moving beyond a rights-versus-obligation polarity, highlighting the biophysical realities of sex, recognizing the spaces in which sex occurs, and noting the social relations inherent in sex and sexuality. Thus, this paper contributes to deeper thinking for activists involved in working through these questions as well as bolstering the notion of sexual citizenship in political geography.     

Raw or Pre-Fired: Kiln Construction at Sawankhalok,North Central Thailand,as a Guide to Ceramic History

Sawankhalok, located in north central Thailand, was an early stoneware ceramic production site where the first kilns were dug cave-like into the natural ground, a method used in China for thousands of years. After a century or so, kilns at Sawankhalok began to be constructed of brick. It is suggested that if the bricks were pre-fired then an external influence may have been responsible. To the contrary, if raw unfired clay was used in the construction of the kilns the evolution was more likely a consequence of conceptual continuity.With the aid of chemical and mineralogical analyses it is shown that the kiln bricks were unfired at the time of kiln construction thereby suggesting that traditional conservatism, apparent in many aspects of the industry, caused processes to remain unaltered in the absence of a persuasive reason for change. These conclusions reflect on the degree of indigenous technology and artistic development associated with Sawankhalok ceramics as opposed to external influence.     

LAND PRICES IN ESSEX COUNTY, ONTARIO 1798 TO 1852

This paper examines land prices in Essex County, Ontario, for the period to 1825 and from 1826 to 1852 in terms of overall accessibility to market and the physical environment. The prime source material was the Abstract Index to Deeds , and data drawn from this source were used in a series of multiple regression analyses. The results confirm the importance of accessibility. However, the physical environment did not affect land prices significantly. The article concludes by considering future refinements of the analysis.
L'article examine les prix des terres dans le comté d'Essex, Ontario pour la période jusqu'à 1825 et de 1826 à 1852 en ce qui concerne I'accessibilité générale, I'accessibilité au marché et I'environnement physique. La source principale de la recherche était l' Abstract Index to Deeds et les données de éette source étaient utilisées dans des regressions multiples. Les résultats affirment l'importance de l'accessibilité. Pourtant, l'environnement physique n'a pas eu une influence significantive sur les prix des terres. L'article se termine en considérant des ragginements futurs pour l'analyse.