Seasonality and season of birth in early Eneolithic sheep from Cheia (Romania): methodological advances and implications for animal economy

Cheia (early 5th millennium cal BC) is a prehistoric village in the Dobrodgea province in Romania. Its occupation is attributed to the Early Eneolithic period or Hamangia III phase. The exploitation of animal resources is heavily dominated by husbandry. Although cattle are dominant, they were complemented by caprines, mainly sheep, exploited for tender meat (as highlighted by a 6–12 months age class peak in the mortality profile). Sheep reproduction patterns were investigated through stable isotope analyses in order to characterize the annual rhythms of slaughtering for tender meat acquisition while informing a more general picture on sheep demographical management and animal husbandry at the settlement. Results from δ¹⁸O analysis on second and third molar enamel were modeled and compared with modern reference populations. Sheep births took place over less than four months, from late winter to early summer. From this it could be concluded that tender meat could be provided most of the year, excepted over short period in early summer. Finally, comparison of datasets obtained on the M2 and M3 suggests that the M2 presents a more accurate representation of birth seasonality due to lower inter-individual variability in the chronology of tooth growth.     

A new Late Ordovician microdomatid gastropod genus from Seville,south west Spain,with a revision of Ordovician Microdomatoidea

A new microdomatid gastropod, Eopagodea sevillana gen. and sp. nov., is described from the Late Ordovician (pre-Hirnantian Ashgill) limestones of Seville, Ossa Morena Zone, Spain. Palaeozoic microdomatids lived in shallow-water environments and were restricted to warm-water regions. Occurrence of microdomatid gastropods in the pre-Hirnantian Ashgill limestones of the Cerrón del Hornillo syncline (Ossa Morena Zone, Spain) is interpreted as an example of an influx of warm-water faunal elements into the otherwise cool to cold climate of the Mediterranean region during a short-termed, pre-Hirnantian increase of palaeotemperatures. The Late Ordovician microdomatid genus Daidia Wilson, 1951, is revised and two new Late Ordovician (Ashgill) subspecies of Daidia cerithioides (Salter, 1859) are described: Daidia cerithioides sewardensis n. subsp. from the Don River area of the York Mountains, Seward Peninsula, western Alaska, and Daidia cerithioides wilsonae n. subsp. from the Little East Lake Formation of northwestern Maine.     

Large carnivore attacks on hominins during the Pleistocene: a forensic approach with a Neanderthal example

Interaction between hominins and carnivores has been common and constant through human evolution and generated mutual pressures similar to those present in worldwide modern human-carnivore conflicts. This current interaction is sometimes violent and can be reflected in permanent skeletal pathologies and other bone modifications. In the present paper, we carry out a survey of 124 forensic cases of dangerous human-carnivore encounters. The objective is to infer direct hominin-carnivore confrontation during the Pleistocene, which is important to understand behavioral changes during human evolution. In addition, the case of Neanderthals is analyzed in order to find evidence of past attacks using forensic observations. The results obtained pose that Neanderthals could potentially have been involved in dangerous encounters during the Pleistocene, validating our methodology to approach past attacks from a forensic perspective.     

Ductility-Equivalent Viscous Damping Relationships for Beam-to-Column Partial-Strength Steel Joints

This paper seeks to contribute to the development and improvement of displacement-based design procedures, proposing improved ductility-equivalent viscous damping relationships for steel moment-resisting framed structures with dissipative beam-to-column partial-strength joints. These relationships can be used directly in procedures like the Direct Displacement-Based Seismic Design (DDBD) that uses effective stiffness, ductility-equivalent viscous damping relationships, and period-displacement relationships in a performance-based design approach. To this end, a finite element model of a steel beam-to-column sub-assemblage, characterized by an extended end-plate, is developed in ABAQUS. The model, which is validated against monotonic and cyclic experimental data obtained in previous research, is employed to carry out non-linear time-history (NLTH) analyses, using real records scaled to target several levels of ductility demand. A procedure is then proposed and applied to determine the ductility-equivalent viscous damping relationships of the sub-assemblages. The equivalent linearization technique is applied to the non-linear responses obtained in the NLTH analyses, using an elastic single degree of freedom structure and the elastic displacement spectra. The influence of joints mechanisms and of the dynamic characteristics of the structure in the equivalent viscous damping is investigated, and an expression for ductility-equivalent viscous damping is proposed. The proposed expression represents a clear improvement in relation to the existing expressions available in literature.     

Living with everyday environmental risks: giving a voice to young people in the design of community-based risk communication programs in the city of San Luis Potosí, México

Risk communication programs (RCPs) can contribute to the improvement of community health in marginalized settlements by improving health-related information and practices. Yet, there is a need to include young people's concerns in the design and implementation of RCPs. This study analyses young peoples’ risk perceptions in the city of San Luis Potosí, Mexico, using visual methods such as drawings and photography. Research was conducted with 74 students from two deprived urban neighborhoods. Results indicate that the use of visual techniques enabled them to identify environmental health risks such as unhealthy sedentary habits and the exposure to hazardous items. We conclude that visual methods may help young people to critically reflect on everyday elements in their environment that affect their well-being. By giving them a voice in a reflexive way, visual methods may engage young people as key multipliers in the awareness raising process, and promote their sense of everyday agency.     

Imperial Expansion, Ethnic Change, and Ceramic Traditions in The Southern Chad Basin: A Terminal Nineteenth-Century Pottery Assemblage from Dikwa, Borno State, Nigeria

In the course of an archaeological project in the southern Chad Basin of Nigeria, excavations were conducted at several deeply stratified mound sites that date from the Late Neolithic to the Late Iron Age. As a way to complement the ceramic sequence obtained so far and to link it with today's pottery tradition, a small excavation was conducted at a site that dates to the turn of the nineteenth to the twentieth century A.D. A pottery assemblage was discovered that shows obvious links to today's tradition but notable breaks with those of the nineteenth century and earlier. This break in decoration style and technique is interpreted as an archaeologically visible expression of changing ethnic identity. This ethnic change and the associated spread of the ceramic tradition can be linked with the expansion of the sphere of power of the Kanem-Borno Empire into the area south of Lake Chad after the sixteenth century A.D.     

Schooling in the University Town: The Racial Capitalist Foundations of Education

This article focuses on how educational institutions are crucial sites for understanding how racial capitalism and anti-Black violence are reproduced. Centring Chapel Hill, home of the University of North Carolina (UNC), and its neighbouring town of Carrboro as a university town built by racial capitalist and anti-Black practices, I analyse how the university functions as a social reproductive force that structures the town and its local public education system. Building on my ethnographic research, Black studies literature, and Black geographic thought, I argue that the university partakes in the political, economic, and ideological restructuring of a community that enables hierarchical differences to be produced in schools in terms of how success is rooted with liberal notions of the individual and proximity to whiteness. Paying attention to these relationships challenges us to think about the need for the total eradication of oppression in all forms to truly have liberated educational spaces.     

Coalition-building in Portuguese Spatial Planning: Is There a Southern European Context?

This paper aims to discuss institutional capacity building in spatial planning focussing on two experiences of public policy in Portugal involving institutional cooperation. These experiences reveal the importance of factors associated with the roles of the central state and local political leadership in the way integrated tools of urban and territorial policy are implemented. They also show that the capacity to mobilize local agents is mitigated by the deep-rooted presence of highly personalized institutional ties, reflecting a relational model that is particularly characteristic of Portuguese society. We will conclude that territorial policies may be jeopardized when these policies are centred mainly upon the mobilization of local agents. In fact, these two case-studies, as well as similar experiences in Italy, suggest that, in southern Europe, two other aspects are central for the definition of territorial policies on the inter-municipal and local scales: the influence of the state, and the role of political leadership at local level.     

Raptor pellets as zooarchaeological material for paleoparasitological studies in Patagonia

Raptor pellets from Cerro Casa de Piedra archaeological sites, Patagonia, have yielded consistent evidence of parasitism and possible zoonoses in ancient times. Pellet samples analyzed were dated at 2740 ± 100 and 3.990 ± 80 years before present and have produced evidence of three intestinal parasite genera. Eggs of two nematodes Trichuris and Calodium, and one cestode, taeniid, were found. Its significance for rock shelters paleoepidemiology of the Holocene is discussed. This study increases the evidences that raptor pellets can be used as source of paleoparasitological information in archaeological sites.