Molecular and osteometric sexing of cattle metacarpals: a case study from 15th century AD Beja,Portugal

In the course of a zooarchaeological survey of Holocene sites in southern Portugal, a substantial size increase of cattle bones was noted following the Christian reconquista of the 11th–13th centuries AD. A size increase in the course of time within a lineage of domestic livestock is usually considered to represent animal improvement. However several other factors including sex may influence the average size of a sample of mammal bones – cattle exhibit considerable sexual size dimorphism, with bulls being larger than cows. A histogram of the distal widths of a large (n = 44) sample of cattle metacarpals from 15th century Beja (Alentejo, Portugal), revealed a bimodal distribution. It was assumed that the large measurements belonged to males and the small to females. In order to rule out the possibility of a post-Moslem change in the sex ratio of cattle, a sub-sample of 21 cattle metacarpals from Beja was selected and we used genetic markers to identify the sex of the animals to which these metacarpals belonged. The ancient DNA sex of all specimens agreed with the previously assumed sex as determined osteometrically. We conclude that the two nearly separated peaks for the metacarpal distal width measurements do indeed indicate sex. A similar bimodal distribution was obtained from another large but earlier sample of cattle metacarpals from Moslem Alcáçova de Santarém (9th–12th century AD). Although these have not been molecularly sexed and since osteometric sexing has now been validated, we conclude that both small (female) and large (male) peaks are smaller than the 15th century ones and that there was an overall size increase or improvement of cattle in this region. Why the Christians improved cattle is unclear, but a selection for larger beeves for meat is one possibility as is the selection of more robust cattle for power. The spread of the quadrangular or chariot plough in Iberia is known to have occurred at this time. We then use the genetically sexed metacarpals to determine which measurements provide reasonable distinction between the sexes. Both the distal width (BFd; as already noted by Svensson et al., 2008; in Swedish medieval cattle) and the width of the lateral condyle (WCL) offer the best distinction. We also used them as a reference ‘collection’ to sex the medieval and post-medieval cattle metacarpals from Launceston Castle in England. This re-visit of the Launceston data corroborates other evidence indicating increased specialisation (milk and veal) in post-medieval cattle husbandry in England.     

Building global knowledge pipelines: The role of temporary clusters

Business people and professionals come together regularly at trade fairs, exhibitions, conventions, congresses, and conferences. Here, their latest and most advanced findings, inventions and products are on display to be evaluated by customers and suppliers, as well as by peers and competitors. Participation in events like these helps firms to identify the current market frontier, take stock of relative competitive positions and form future plans. Such events exhibit many of the characteristics ascribed to permanent spatial clusters, albeit in a temporary and intensified form. These short-lived hotspots of intense knowledge exchange, network building and idea generation can thus be seen as temporary clusters. This paper compares temporary clusters with permanent clusters and other types of inter-firm interactions. If regular participation in temporary clusters can satisfy a firm's need to learn through interaction with suppliers, customers, peers and rivals, why is the phenomenon of permanent spatial clustering of similar and related economic activity so pervasive? The answer, it is claimed, lies in the restrictions imposed upon economic activity when knowledge and ideas are transformed into valuable products and services. The paper sheds new light on how interaction among firms in current clusters coincides with knowledge-intensive pipelines between firms in different regions or clusters. In doing so, it offers a novel way of understanding how inter-firm knowledge relationships are organized spatially and temporally.     

Job polarization in the new economy in Danish cities: location,size, and the role of the public sector

ABSTRACT

In this paper we examine the geographic patterns of employment growth and employment polarization in small and medium-sized cities (SMCs) in Denmark during the rise of the new economy. The geography of employment polarization in Danish cities is examined using register-based employment data on occupations and wages divided into the public and private sectors in the period 1993–2006; it therefore covers a long period of transformation and growth in the Danish economy. We conclude that employment growth is characterized by employment polarization combined with growth in low- and high-wage employment and a decline in medium-wage employment. However, these patterns of polarization differ across the public and private sectors, as well as by geography. While local labour market (LLM) size, city position and city specialization influence the geography of private-sector employment growth and polarization, municipal population and composition influence the geography of public-sector growth patterns across wage levels. Finally, public and private employment are positively associated within SMCs, predominantly driven by the positive association between public employment and private-sector low-wage employment. However, public employment is not associated with an increase in private low-wage employment in more remote areas.     

COMMODIFYING DANISH HOUSING COMMONS

Housing was a backbone of the Danish welfare state, but this has been profoundly challenged by the past decades of neoliberal housing politics. In this article we outline the rise of the Danish model of association‐based housing on the edge of the market economy (and the state). From this, we demonstrate how homes in private cooperatives through political interventions in the context of a booming real estate market have plunged into the market economy and been transformed into private commodities in all but name, and we investigate how non‐profit housing associations frontally and stealthily are attacked through neoliberal reforms. This carries the seeds for socio‐spatial polarization and may eventually open the gate for commodification – and thus the dismantling of the little that is left of a socially just housing sector. Yet, while the association‐based model was an accessary to the commodification of cooperative housing, it can possibly be an accomplice in sustaining non‐profit housing as a housing commons.     

REGIONALIZING “MODE 2”? THE ADOPTION OF CENTRES OF EXCELLENCE IN SWEDISH RESEARCH POLICY

This article contributes to the ongoing debate on the role of university research for innovation and economic growth, a debate highly influenced by concepts such as Mode 2 and regional innovation systems and clusters. A prominent trend in many EU and OECD countries is to direct research funding towards so‐called Centres of Excellence (CoEs) in order to stimulate the industrial output of scientific research. The implementation of the CoE approach is viewed as an attempt to bridge research and innovation policy. By using Sweden as an example and providing an overview and critical discussion concerning Swedish research policy during the period 2001 to 2007 we show that the rhetoric within research policy has changed and become increasingly intertwined with innovation policy. In practice, however, this is not as evident. The study draws on (a) an analysis of policy literature pointing out regulatory and organizational changes concerning the increasing emphasis on linking research to competitive industrial milieus, and (b) a comprehensive database including 110 CoEs, presenting a detailed picture of university‐industry collaboration, cross‐disciplinarity, and prioritized sectors. We fiind that the CoEs account for a relatively small share of government funding, but may however have a strengthening impact on particular research milieus and industries, especially in the life sciences. Additionally, although contemporary policy rhetoric appears to highlight steering funding to geographically‐concentrated milieus, thereby linking leading university research to regional industrial clusters, this has only been manifested in a few cases – notably in the Vinnväxt programme run by Vinnova, the national agency promoting innovation systems.