Molecular and morphological analyses of avian eggshell excavated from a late thirteenth century earth oven

Using ancient DNA (aDNA) extracted from eggshell of the extinct moa (Aves: Dinornithiformes) we determined the species composition and number of eggs found in a late thirteenth century earth oven feature at Wairau Bar (South Island, New Zealand) – one of New Zealand’s most significant archaeological sites. Mitochondrial and nuclear DNA signatures confirmed this oven feature contained fragments of at least 31 moa eggs, representing three moa genera: Emeus; Euryapteryx; Dinornis. We demonstrate through the genetic identification of 127 moa eggshell fragments that thickness is an unreliable character for species assignment. We also present a protocol for assessing the preservation likelihood of DNA in burnt eggshell. This is useful because eggshell fragments found in archaeological contexts have often been thermally modified, and heat significantly increases DNA fragmentation. Eggshell is widely used in radiocarbon dating and stable isotope research, this study showcases how aDNA can also add to our knowledge of eggshell in both archaeological and palaeoecological contexts.     

Numerical Fragility Analysis of Vertical-Pile-Supported Wharves in the Western United States

This study develops seismic fragility curves for vertical-pile-supported wharves commonly found in the western United States. Nonlinear time-history analyses of a two-dimensional numerical model under two ground motion suites are performed. The results show that the jumbo container cranes increase by 10.8% in the wharf deck drift. By using the experiment-based limit states, the proposed fragility curves demonstrate that, at a PGA of 0.50 g, the probabilities of exceeding slight, moderate, extensive, and complete limit states are approximately 23.0%, 7.0%, 4.0%, and 3.0%, respectively, while at a PGA of 1.00 g, the exceeding probabilities increase to 44.0%, 19.0%, 14.0%, and 11.0%, respectively.     

The union Européenne des fédéralistes and its ‘third force’ programme

Environmental Education (EE) is broadly discussed in the Federal Republic of Germany. The different conceptions may be classified as the cognitive, the emotive, the cognitive-experiential and the system-critical model. In the article, the role of institutions in the educational system, dealing with EE, is described. Current activities in empirical research work and some findings on EE in German schools are reported.     

From aisling to chora: female allegories of the nation in contemporary Irish women's poetry

Contemporary Irish women poets use female tropes of Irish nationalism as a potent site for revising traditional conceptions of femininity, maternity, and cultural identity. Arguably, female tropes of aisling poetry inhabit the same cultural location that anchors the societal role of motherhood as theorised by Julia Kristeva. Kristeva's work highlights mothers' important function in regulating the drives and preparing children for entrance into the symbolic order of society, in relation to which mothers remain structurally liminal. The Platonic chora, an amorphous receptacle from which forms emerge, symbolises this position at the threshold. This essay shows that Irish women poets revise female allegories of the nation either by aligning them with women's lived experience, as Eavan Boland has done, or by re-evaluating them from within their liminality, through stylistic experimentation or irony, which the analysis of poems by Eiléan Ní Chuilleanáin, Medbh McGuckian, Nuala Ní Dhomhnaill and Rita Ann Higgins demonstrates.