Salt Effects in Plastered and Unplastered Outdoors Brick Masonry: Quantitative Laser Monitoring of Surface Decay Evolution

In masonry materials, the superficial decay is a widespread problem. Aggressive environmental agents such as moisture and salts trigger the damage by propagating through the material capillary pores. Although several studies have been carried out on salt crystallization and their damaging effects, additional research effort is required to better investigate this phenomenon on real cases and real weathering conditions. To this purpose, testing and monitoring tools capable of following degradation process since the early beginning are necessary. Repeated visual inspections are commonly used to monitor the superficial decay, but this technique is subjective and thus not capable of providing any quantitative information. In this work, an experimental campaign, carried out in Bologna, Italy, is presented. A two-header brick wall, one main face unplastered and one plastered, was stored outdoors and exposed to weathering over two summers. Before the start of the second aging season, moisture and salt capillary rise was simulated by low-concentrated sodium chloride solution (0.1% -wt). The aim was to favor solution evaporation and salt crystallization and to provoke material damage. The degradation process was monitored based on a contactless, rapid and accurate image diagnostic technique. In particular, high-resolution laser scanning by triangulation technique was adopted. Three-dimensional data acquisition was repeated at the end of both seasons. The proposed procedure successfully extracted quantitative information approximately areas of material spalling and detachment even in the initial phases of decay.     

The First Crusade and the Latin east as seen from Venice: the account of the Translatio sancti Nicolai

The Translatio sancti Nicolai is the earliest Venetian source to describe the deeds of the first crusaders from Venice. It is most likely based on an eyewitness account of the events that was later rewritten in order to provide the historical context for the translation of St Nicholas's relics to Venice. This source ambivalently depicts the nature of the crusader battles, both emphasizing the spiritual value of this fight, mainly seen as a way to fulfil the sequela Christi , and highlighting the significant economic implications of the Christian conquest of the Holy Land.     

Breaking the CMEA hold: Romania in search of a ‘strategy’ towards the European Economic Community, 1958–1974

ABSTRACT

This article analyses Cold War Romania’s conceptualization of its relations with the European Economic Community (EEC) and its struggle to influence the policy of the Council for Mutual Economic Assistance (CMEA) towards the EEC in a way compatible with Bucharest’s interests. Addressing a significant historiographical gap, in a sense, this study investigates the origins of Romania–EU relations. Multi-archival in approach, it argues that the period between 1969 and 1974 represents the formative years of Romania–EEC relations. Exploring the political rationale behind Romania’s attitude towards the Common Market, the article finds that the country’s ‘strategy’ in this respect had three main characteristics: it was pragmatic, active and, to some point, adaptive; drawing heavily from Romania’s previous position, it took shape in the early 1970s; and, although it seemed to focus on the commercial aspects of relations, it reflected a far more complex interaction between the two political and social systems than previously acknowledged.     

The novel spaces and power-geometries in tourism and hospitality after 2020 will belong to the ‘local’

Abstract

The global crisis we have experienced due to the COVID-19 pandemic emergency challenges our perception of the global and local context in which we live, travel, and work. This crisis has spread novel uncertainties and fears about the future of our world, but at the same time, it has also set the ground to rethink the future scenario of tourism and hospitality to bring about a potentially positive transformation after 2020. Such a scenario can be understood in light of the work of Doreen Massey and the pivotal theorisations on ‘space’ and ‘power-geometry’ she presented in her book For Space (2005). Massey conceives space as the product of multiple relations, networks, connections, as the dimension of multiplicity, the result of an ongoing making process, and in a mutually constitutive relationship with power. Interweaving Massey’s theorisations with a critical examination of the neoliberal capitalism approach to the conceptualization of space, the COVID-19 global crisis prompts us to rethink the space inside and outside of tourism and hospitality by re-focusing on the local dimension of our space as the only guarantee of our own wellbeing, safety, and security. While the global dimension seems more broken than ever, the urgency of belonging to the local is more and more evident. Hence, we propose a critical reflection on the implications of such a scenario in the space of tourism and hospitality, foreseeing a potentially positive transformation in terms of activation of local relations, networks, connections, and multiplicities able to open up such space to multiple novel functions designed not just for tourists and travelers but also for citizens.     

The Aterian from the Jebel Gharbi (Libya): New Technological Perspectives from North Africa

The purpose of this work is to examine the Aterian complex in the context of modern human origins through the analysis of the lithic industries from a geographically strategic area, the Jebel Gharbi (Libya). From a chronological point of view, the Aterian fits the time period of the Out of Africa 2 dispersal. During geoarchaeological surveys of the Jebel Gharbi carried out by the Italian–Libyan Archaeological Mission, 25 Aterian sites were found. The technology of the Aterian lithic industries from the Jebel Gharbi shows affinities both with the Aterian industries from Morocco and coeval industries from Egypt such as Taramsa. The affinities between contemporary Libyan Aterian industries, Egyptian industries, and some series from the Levant open new perspectives on the possible models of contact and displacement of human groups in a key period for the history of humankind.     

‘A Shop Window Where You Can Choose the Goods You Like’

This article examines the Finnish industrial and trade fairs held in the Soviet Union in the context of Finnish–Soviet trade and scientific–technical cooperation in the 1950s and 1960s. While primarily focused on fairs, it also discusses different activities that accompanied them, such as lectures, visits, and negotiations between Finnish traders and Soviet officials and specialists. This study illustrates how such first-hand contact played an important role in Finnish–Soviet communications. First, they helped Finnish producers showcase their goods and technologies directly to Soviet buyers in various ministries and organizations. Second, these contacts included diverse activities such as face-to-face contacts, lectures, and seminars, being a means of technology transfer from Finland to the USSR . Finally, although they were commercial interactions without explicit ideological purposes – like many international exhibitions of the last century – Finnish fairs demonstrated a technological gap between Finland and the USSR.