Testing flora as bioindicator of buried structures in the archaeological area of Maxentius’s villa (Rome,Italy)

The flora of the archaeological area of Maxentius’s villa (Rome) was tested as bioindicator of buried remains of masonry and pavements. A total of 53 floristic surveys provided the occurrence of each species in sample units, as well as some their phenological features. The data were elaborated through multivariate statistical analysis in order to assess floristic affinities/differences among sample units, and define their ecological characteristics. The fuzzy set methodology was applied to evaluate relation between floristic richness, plant cover and soil depth. Results showed that the buried remains of stonework create a discontinuity in the ground, influencing the flora growing above it. This phenomenon may give rise to differential presence of some species (e.g., Cota tinctoria, Trifolium scabrum ssp. scabrum on thin soil; Ranunculus bulbosus, Trifolium pratense on deeper soil), but will not have such a great effect on floristic richness. The bioindication of this phenomenon also occurs through phenological irregularities in single specimens and changes in plant cover. Nevertheless other environmental factors (soil moisture/aridity, trampling, enrichment of nitrogen, cutting, ground depression) can interfere with the use of plants as bioindicators of buried structures. It is therefore necessary to consider other factors ecological influencing each site when you want to use plants as bioindicators in archaeological prospection.     

Towards an Archaeology of Disentanglement

The impact of connectivity in past societies has long been a focus of archaeological studies. Well-established approaches have been developed over the years to understand emergent connections and entanglement between distant communities, including world system, culture contact, post-colonial theories and network analyses. Our understanding of connectivity remains partial, however, because researchers have focussed on the establishment and consequences of contact and largely ignored the dynamics that often led to its interruption. Yet these processes of ‘disentanglement’ are just as complex and far-reaching as their converse and need to be understood in their own right. This paper shows that a thorough analysis of disentanglement processes can contribute to our understanding of the very nature of the interrupted contacts, as well as shed light on the social dynamics that engender long-term changes in contact patterns. The concept of disentanglement is discussed in the light of current theories of connectivity and explored through regional case studies in Late Bronze Age Italy (Salento) and Greece (Achaea).     

New data on relevant ancient Egyptian wooden artifacts: Identification of wooden species and study of the state of conservation with multidisciplinary analyses

Wood species identification and characterization of its weathering processes are crucial steps in the scientific approach of conservation of wooden cultural heritage. Many precious wooden objects of ancient Egypt are largely present in museums, nevertheless relatively little information is available concerning the nature of timber used and on their status of conservation. To address this gap, the wooden species of three relevant archaeological wood objects (statue, box, and coffin) arising from different Egyptian archaeological sites dated from the Old Kingdom (2,686–2,181 BC) to New Kingdom (1,550–1,069 BC) were deeply studied. Five hardwood and softwood species were identified belonging to Tamarix mannifera, T. gennessarensis, Ficus sycomorus, Vachellia nilotica, and Cedrus sp. Such data confirmed the recurrence of Vachellia and Tamarix among the most common timbers found in ancient Egypt. Scanning electron microscope, Fourier transform spectroscopy, and synchrotron x-ray radiation diffraction were conducted to evaluate the archaeological wood deterioration. The formation of microcracks, biological degradation patterns (fungal colonization), or chemical characterization (accumulation of salts on and in-between wooden cells) were detected. SEM micrographs showed the presence of fungal hyphae and conidial spores on the wooden cells. Significant changes in the chemical wood composition and decrease in the crystallinity index were detected.     

Identifying institutional configurations for policy outcomes: A comparison of ecosystem services delivery

This paper employs the Institutional Analysis and Development framework across six ecosystem delivery measures in the European Union to develop a configurational explanation of (un)successful outcomes. By undertaking comparative institutional analysis, we systematically examine the effect of variation across rule types and generate insights on how different institutional configurations result in varying degrees of successful implementation of ecosystem delivery measures. We apply explanatory typology methods to identify the institutional features that best explain variation in implementation success across a number of cases. We argue that institutional rules shape outcomes in conjunction rather than in isolation. The findings show that differences in implementation success across cases can be explained by the interplay of differences in knowledge exchange, flexibility in implementation, and participation in the policy design process.     

The political functions of virtue in the eighteenth-century Italian debate

Many recent studies either assert that the concept of virtue in eighteenth-century Italian intellectual culture is a polysemous term without really explaining its meaning, or concentrate on just one of its many facets. However, so far no study has explored the shades of meaning ascribed to ‘virtue’ to their full extent. This study is an attempt to reconstruct the eighteenth-century Italian intellectual perspective on virtue and to reveal its geographical complexities, its semantic evolutionary curve, and its interconnections in different fields. The aim is not to create a simple ‘map’, but rather to focus on the limits of the intellectual debate in defining and communicating virtue, and to envisage the understanding of the political functions of virtue through more popular and widespread media such as poetic texts. Despite its ever-changing meaning, virtue remains not only a keyword of political discourse over the century, but also stands as one of the very pillars on which powerful imageries of political communication were constructed. Therefore, this article provides a first step towards an analysis of political communication in eighteenth-century Italy, which, in subsequent studies, will take into account poetic sources, which at that time were regarded as an effective instrument to overcome the aforementioned intellectual limits and better exploit the possibilities of a rhetoric of virtue.     

Italian Industrial Districts on the Move: Where Are They Going?

Since the second half of the 1990s the Italian economy has experienced a significant slowdown in the rate of economic growth. The “dwarfism” of its manufacturing firms, their specialization in traditional sectors and their organization in industrial districts have been identified by many scholars as major structural weaknesses in the Italian industrial system. Nevertheless, there is a vast and flourishing empirical literature showing that many industrial districts are actually changing in terms of sector specialization, international and innovation strategies and emergence of new forms of enterprise organization. In this paper, we provide a critical survey of the new and different patterns of industrial organization emerging in industrial districts.     

Forging a ‘Good Diaspora’: Political Mobilization among Somalis in the UK

This article is about a campaign that was initiated by Somalis in London in 2013 against Barclays Bank's decision to shut down the accounts of four Somali remittance companies in the UK. It explores how young Somalis mobilized politically around the issue, and how, in the process, they created and reified a particular ‘imagined community’. By drawing on multicultural notions of community, and development idioms of diaspora engagement, they fashioned themselves around a notion of ‘good diaspora’ based on generation, pan‐Somali unity, and ideas of ‘professionalism’. In so doing, they were able to mobilize politically as both national and transnational actors, but were also confronted with some of the limits of the ‘good diaspora’ identity category. This article establishes a dialogue between the literature on diaspora engagement and that on migrant political mobilization by exploring how young Somalis navigate across these different national and transnational conversations, discourses and social categories.