Examining dispersal mechanisms for the translocation of chicken (Gallus gallus) from Polynesia to South America

DNA sequencing and radiocarbon dates from the archaeological site of El Arenal-1 (Arauco Peninsula, south central Chile) suggest that Polynesians may have introduced chicken (Gallus gallus) to South America prehistorically (A.D. 1300–1420). The Chilean specimen identified has the exact same amplified mtDNA pattern as samples recovered from archaeological sites in Samoa and Tonga, but is only one base different from prehistoric chicken samples from Tonga (n = 1), Niue (n = 1), Easter Island (n = 1 of 6), and Hawai'i (n = 1). To examine the possible dispersal mechanisms of chicken between Polynesian islands and the Americas, we conducted computer simulations of seafaring from these six island groups and the Tuamotus, as well as return voyages. Simulation results from sailed vessels suggest that in certain months, landfall on the Pacific Coast of South America from Samoa and Tonga was fairly successful at around 40% (particularly in March for the former and January/February for the latter). For Niue, sailed vessels were 21% successful in January with only 2% success in December. Sailed vessels from the Tuamotus (a proxy for closer island groups to the west with evidence for chicken such as the Cook Islands) were successful in January and December, with 15% and 23% of the vessels making landfall in South America. Vessels sailing from all simulations heading east from Easter Island resulted in landfall. Hawai'i had only a 1% success rate if sailing in January, but high numbers of vessels reached southern Mexico and Central America in August and September. Most landfalls occurred much farther north than Chile, in Ecuador and Peru. Unsuccessful voyages from all of the islands other than Easter Island and Hawai'i often made landfall on islands to the east. Return voyages from Chile were not possible or extremely rare during most times of the year. Overall, seafaring simulations suggest that Polynesians may not have initially landed in close proximity to El Arenal-1—contemporaneous or even earlier archaeological evidence of translocated chicken remains may indeed be found further north. In addition, if Polynesians found it difficult or impossible to return to their homeland, the possibility exists that co-mingling between Polynesians and South American groups resulted in offspring that carried an admixture of genetic traits.     

Private Citizens as Policy Entrepreneurs: Evidence from Autism Mandates and Parental Political Mobilization

Growing bodies of research in the social sciences point to politicians, bureaucratic officials, interest groups, and other actors who serve as policy entrepreneurs. In this paper, we argue that private citizens can also serve a primary role as policy entrepreneurs. To analyze this phenomenon, we investigate the behavior of private citizens and their role in changing state policies surrounding insurance mandates for autism coverage. Using a thematic analysis of focus groups and interviews conducted with individuals active in the push for autism policy change, we demonstrate that private citizens meet all of the requirements identified for policy entrepreneurs in the existing literature. We then investigate when, why, and how these private citizens step forward into the policy process as entrepreneurs. We show that entrepreneurship occurs when private citizens have needed resources, a sense of duty to fix a policy status quo they see as unjust, and a stake in policy change. We conclude by discussing the importance of our findings to the study of public policy and their generalizability beyond autism policy.     

The boundaries of eros— Sex crime and sexuality in Renaissance Venice

Throughout Western history there have been two sharply differentiated beliefs about the character of creativity. However, one of these beliefs—Judaeo-Christian and neo-Platonic—has occupied such a dominant position that the very existence of the other has been obscured and ignored. Yet the evidence for this second belief is no less extensive or vivid. It has never been formulated in the same way as the first and so has never constituted a tradition as such; yet it has existed over as long a period of time and can therefore be called a tradition. Moreover, this second belief seems to bear a closer relation to the character of creativity displayed by people regarded as ‘creative’, as well as to what we have learnt about creativity in this century from psychologists. Attitudes to creativity in the modern period have generally been based on the first tradition, but the activities of creative people have borne out the validity of the second tradition. The attitudes, in other words, have been based on false expectations. To recover the lost tradition, therefore, may enable us to see more accurately what we may or may not achieve by being creative.     

Young people's perspectives on conflict,reconciliation and reunification in Cyprus

The purpose of this paper is to explore the views of young people on conflict, reconciliation and reunification in Cyprus. The paper is based on focus group discussions with 20 Turkish Cypriot and 20 Greek Cypriot young people, aged between 14 and 16, drawn from two schools located in the divided capital city of Nicosia. While young people's discourses revealed underlying deep-seated hostilities in attitudes between the two groups, there was some evidence of cautious optimism. The paper explores what lessons can be learned from ascertaining young people's viewpoints and how these opinions need to be taken seriously in order to further our understanding of young people's experiences of divided societies.     

The Modern Girl around the World: A Research Agenda and Preliminary Findings

Our research collaboration examines how the Modern Girl emerged as a global phenomenon in the first half of the twentieth century. By wearing provocative fashions and pursuing romantic love, Modern Girls everywhere appeared to disregard the roles of dutiful daughter, wife and mother. We develop the Modern Girl as a heuristic category that allows new insights into forces of globalisation and manifestations of gendered modernity. Through a case study of cosmetics advertising in China, India, South Africa, Germany and the United States, we show that the Modern Girl in each locale was shaped through multidirectional citations of elements from elsewhere, through transnational processes of racialisation and through distinct articulations of nationalism.