Multi-technique investigation of historical Chinese dyestuffs used in Ningxia carpets

In this article, an extensive work is presented concerning the characterization with both chromatographic (high-performance liquid chromatography) and spectroscopic (surface-enhanced Raman spectroscopy and visible reflectance spectroscopy) techniques of historical Chinese dyestuffs in several carpets, mostly coming from the Ningxia region in Northern China and dating to the seventeenth–nineteenth centuries. Notably, the color of the background of these fine artifacts has been an object of debate since, while being depicted as bright red in the ancient iconography, nowadays it appears as orange/yellow. Therefore, in addition to the identification of all the colorants used in the carpets, the present study investigated the reasons of this apparent inconsistency, pointing out an explanation based on the joined use of the yellow dye obtained from the pagoda tree and a “fugitive” dye obtained from brazilwood.     

New compositional data on ancient mortars from Hagia Sophia (Istanbul,Turkey)

This study shows the results of a multidisciplinary collaboration between the University of Calabria (Italy) and the National Autonomous University of Mexico (UNAM), about the compositional characterization of some mortars taken from Hagia Sophia in Istanbul (Turkey), one of the most important buildings in antiquity. Twenty samples of joint mortars were analysed by micro-chemical analyses (SEM-EDS), X-ray powder diffraction (XRPD), optical microscopy (OM) and transmission electron microscopy (TEM). The compositional study allowed us to define, with more detail, the construction phases of the fifth, sixth and tenth century. The petrographic analysis in thin section by optical microscopy showed four typologies of sands, used as aggregate, with specific compositional features. SEM-EDS analyses and TEM observations of the binder around the ceramic fragments of the aggregate showed the presence of different morphologies of single C-S-H compounds.     

A centralized decentralization: outsourcing in the Turkish cultural heritage sector

Recently Turkey has experimented with reforming its highly centralized cultural heritage sector by outsourcing commercial activities at museums and archeological sites. We examine three outsourcing contracts executed in 2009–2010 and their implications for understanding New Public Management in Turkey’s cultural sector. The initial project at the Istanbul Archaeological Museum was soon superseded by a ‘monopoly’ model that outsourced gift shop and ticket collection services at over 50 museums and sites to single companies. All three projects have significantly increased visitor numbers and revenues for the revolving fund that controls commercial operations within the Ministry of Culture and Tourism. Yet unlike countries such as Italy, where outsourcing has led to decentralization, increased private sector involvement in Turkey has increased the control of the central government. This ‘centralized decentralization’ is a distinctly Turkish approach that allows for modernization without disturbing a highly centralized administrative tradition.     

A Procedure for the Displacement-Based Seismic Assessment of Infilled RC Frames

The aim of this study was to propose an extension of the displacement-based assessment procedure for infilled reinforced concrete (RC) frames. Two fundamental steps of the displacement-based approach were studied: the determination of the equivalent viscous damping and the definition of the limit-state displacement profile. The proposed criteria were derived by examining the results of two different numerical investigations regarding the nonlinear seismic response of single- and multi-story infilled RC frames. Lastly, the effectiveness of the method was verified through comparisons, in terms of displacement demand, with the results of nonlinear dynamic analyses.     

Commercial Archaeology and 3D Web Technologies

ABSTRACT

This contribution summarizes the multiple uses of 3D web technologies in commercial archaeology. Considering the breadth of this topic, we will describe each different branch of these technologies with the example of case studies based on work of the Italian company Arc-Team. Our overview begins with 3D visualization for scientific purposes, showing a project funded by the Autonomous Province of South Tyrol (Italy) in order to improve knowledge about WWI. Second, we analyze a similar project, funded by the Autonomous Province of Trentino (Italy), but with the aim to increase tourism at a high alpine WWI site. The third example is the development of another prototype for tourism: a 3D web-map for the cultural valorization of the historical border (1753) between the region Tyrol and the Most Serene Republic of Venice. In the forth case study, we discuss the implementation of 3D within web platforms for archaeological project management of RAPTOR (Ricerca Archivi e Pratiche per la Tutela Operativa Regionale), a webGIS developed to aid in preservation and conservation efforts of cultural heritage for the Italian Ministry of Cultural Heritage and Activities and Tourism (MiBACT). Fifth, we explore recent uses of 3D models for web-coworking during the process of excavation management, thanks to the developments of real-time 3D acquisition techniques based on SLAM algorithms and archeorobotic devices. Finally, 3D web-coworking is also analyzed illustrating some simple web tools that afford rapid feedback in data visualization, considering not only excavation field-work but also exploration projects. This overview, based on six different case studies, represents the four fields in which 3D web technologies are currently used in commercial archaeology: scientific communication; tourism improvement; preservation of cultural heritage; and real time field-work management. Some specific topics such as tourism improvement and field-work management are investigated in greater depth in order to allow us to analyze variables deriving from customer requests (e.g. restrictions regarding sensitive geolocation or preferences for specific web platforms) and from differences among data acquisition technologies based on various sensors.     

Stronger together? Assessing the causal effect of inter‐municipal cooperation on the efficiency of small Italian municipalities

When local governments are small and fragmented, promoting inter‐municipal cooperation (IMC) among them is seen as a tool to improve the management of public services by reaping economies of scale and scope. Yet, the empirical evidence on the impacts of IMC on local governments' efficiency is scarce and inconclusive. In this paper, we investigate the experience of Italy's municipal unions (Unioni di comuni). We develop an index of technical efficiency by means of robust data envelopment analysis. We then exploit nearest‐neighbor matching and fuzzy regression discontinuity design estimators to explore whether municipal unions have any impacts on the administrative efficiency of member municipalities. We fail to find any strong, significant effect.     

A Long Way to Complexity: Nonlinear “Growth Stages” and Spatially Uncoordinated Settlement Expansion in a Compact City (Athens,Greece)

Recent urbanization trends reflect an increasing dependence on regional economic transformations, local population dynamics, and planning constraints, becoming intrinsically complex and nonlinear. Following this assumption, the present study proposes a new approach for the analysis of long-term urban expansion in a compact metropolitan region (Athens, Greece), clarifying the importance of spatial heterogeneity and volatility in building activity over more than one century. A spatially explicit statistical approach was used to define a development cycle reflecting the stratification of heterogeneous waves of compact and dispersed urbanization at municipal scale. While resulting in distinctive spatial patterns of building activity, long-term urban growth emerged as a multifaceted response to market stimuli, social change, and diversified territorial contexts. Results of a spatially explicit analysis of long-term urban expansion based on official statistics shed further light on processes of metropolitan growth and change, and contribute to design integrated strategies enhancing spatial coordination and a more balanced socioeconomic development of contemporary cities.     

Two forms of Catholicism in twenty-first-century Italian public debate: an analysis of positions on same-sex marriage and Muslim dress codes

There is a peculiar relationship between religion and the political system in twenty-first-century Italy. In particular, the collapse of the Democrazia Cristiana party has favored the rise of new political entrepreneurs eager to exploit religion as a legitimacy factor, while the Catholic Church has attempted to influence politics without the mediation of any specific political party. New debates involving religious values have therefore developed. This article analyzes the positions taken and the frames proposed by Italy’s Catholic political actors in relation to two particularly telling issues, that of same-sex marriage and that of the Muslim dress codes. Its most striking finding is the presence in the Italian political system of two distinct forms of Catholicism in politics. One, promoted by the Catholic Church and followed by most centrist Catholics, is quite tolerant in terms of social and religious pluralism and supportive of human rights and social justice, but it emphasizes the ‘traditional’ heterosexual family as the cornerstone of society. The other, ‘civilizational’ form, promoted by the Lega Nord and some other center-right representatives and intellectuals, is based on an idea of Italian citizenship articulated in religious, cultural, and ethnic terms, and thus excluding those who are not members of this community. Here Christian identity is not defined by the Church’s teachings, but rather represents a marker of Western civilization in opposition to Muslim civilization.     

Analysis of the Effect of Provisional Ties on the Construction and Current Deformation of Mallorca Cathedral

This article presents the analysis of the structure of Mallorca Cathedral taking into account the influence on the structural behavior of auxiliary iron ties used during the construction process. Recent studies (Roca et al. 2012, 2013) presented some hypotheses about the construction process of the cathedral. This article complements the previous results by considering the use of auxiliary ties as temporary stabilizing device during the construction. Evidence of the use of ties during the construction has been recognized after a comprehensive survey. The study of the role of such ties and the effect of their later removal are studied by a FE analysis carried out on a representative bay of the structure. The study includes a time-dependent FE analysis after the removal of the ties to assess the long-term structural behavior. The results of the numerical analysis are compared with the deformation trends identified by means of a recent monitoring campaign.