GOVERNMENT QUALITY AND THE ECONOMIC RETURNS OF TRANSPORT INFRASTRUCTURE INVESTMENT IN EUROPEAN REGIONS

Transport infrastructure investment is a cornerstone of growth‐promoting strategies. However, the link between infrastructure investment and economic performance remains unclear. This may be a consequence of overlooking the role of government institutions. This paper assesses the connection between regional quality of government and the returns of different types of road infrastructure in the regions of the European Union. The results unveil the influence of regional quality of government on the economic returns of transport infrastructure. In weak institutional contexts, investment in motorways—the preferred option by governments—yields significantly lower returns than the more humble secondary road. Government institutions also affect the returns of transport maintenance investment.     

Thin-folded Shell for the Renewal of Existing Wooden Roofs

In this article, a technique for the renewal of historic building wooden roofs is presented. The solution can be used for the strengthening of existing wooden roofs against excessive lateral thrusts on the peripheral wall or for the recovery of the attics, as it allows removing the existing structural elements, such as possible wooden truss-works of no artistic value. With minor adaptations, the solution can be addressed to enhance the building seismic performance. The technique is minimally impairing on existing buildings and can be applied also in new constructions.

The technique is based on the construction of a thin folded shell, overlaying the existing pitches. Emphasis is given to lightweight folded shells, obtained by overlaying thin plywood panels on the existing roof rafters and planks, without modifying the overall architectural layout.

The technique conceptual design is discussed and a simplified analytical method is proposed, which allows for the clarification of the role of each structural component and can be adopted for the folded shell proportioning and design. The analytical results are validated against numerical results obtained with reference to some case studies. Ultimately, emphasis is given to the detailing, whose correct execution is mandatory for the success of the proposed structural intervention.     

Applying the technique of image classification to climate science: the case of Andalusia (Spain)

This paper proposes an empirical climate classification method based on the application of multivariate statistics. In this method, the technique of supervised and unsupervised image classification is used to classify the data and define climatic units. envi software is used to perform the image classification, specifically, the Iterative Self‐Organizing Data Analysis Technique algorithm. Supervised classification is also applied based on reference variables, fundamental parameters and a classifier. The obtained results display greater objectivity, reliability, operability, accessibility and reproducibility than previous climate classifications devised for the region of Andalusia (Spain), taking into account that these previous classifications were not based on quantitative criteria.     

Enrique Díaz Retg and El Diluvio: reportage from the Italian frontline (1916)

In the year 1916 Enrique Díaz Retg, a staff journalist working for the Spanish newspaper El Diluvio, extremely popular among Barcelona’s working class readers, was assigned to report from the Italian front. Following an invitation from the Italian Foreign Office, he was granted permission to visit war zones under the control of the Italian army. During this journey, which began on 5 September and concluded in Rome on the 22nd, he traveled with two other famous Spanish reporters, Ramón Pérez de Ayala and Eduardo Gómez de Baquero. Comparing the articles produced by the three journalists allows us to perceive the main distinctive features of Enrique Díaz Retg’s work. From an ideological point of view, his articles reveal a bias in favor of the Latin race and in them he calls for Mediterranean nations to unite, openly inviting the Spanish authorities to enter into war against the barbaric German enemy. In doing so, he contributed to widening the social gap that in the years to come would increasingly alienate the working class from the institution of monarchy and the Catalan elites.     

Industrial policies in a Marshallian-based multilevel perspective

Drawing on a multilevel framework of Marshallian external economies, we present a perspective on the foundations of enterprise policies across different levels of government. In so doing, we add complexity to the traditional approach to industrial districts, which often disregards the role of supra-local policies. The argument is based on the idea that the main task of policy-makers is not just to provide generic public goods for communities of people defined by administrative boundaries, but also to support the provision of public goods that strengthen the competitiveness and innovative capacity of social and productive systems functioning at various territorial scales, from that of compact centres of industry to the nation-state and beyond. We apply this multilevel framework to the interpretation of the Italian enterprise policies.     

A Post-Imperial Cold War Paradox: The Anglo-Nigerian Defence Agreement 1958–62

As the recent and current French military interventions in West Africa have illustrated, France succeeded in establishing long-lasting security relationships with its former colonies during the transfer of power. In Britain’s case, by contrast, decolonisation was largely followed by military withdrawal. This was not, however, for lack of trying. The episode of the Anglo-Nigerian Defence Agreement clearly illustrates that Britain, driven by its global cold war military strategy, wanted to secure its long-term interests in sub-Saharan Africa. The agreement was first welcomed by the Nigerian elite, which was not only anglophile and anti-communist, but also wanted British military assistance for the build-up of its armed forces. Yet, in Nigeria, the defence pact was faced with mounting opposition, and decried as a neo-colonial scheme. Whereas this first allowed the Nigerian leaders to extract strategic, material and financial concessions from Britain, it eventually led to the abrogation of the agreement. Paradoxically, Britain’s cold war grand strategy created not only the need for the agreement, but also to abrogate it. In the increasingly global East-West struggle, the agreement was strategically desirable, but politically counterproductive.     

The intercalatus nucleus of Staderini

Rutilio Staderini was one of the leading Italian anatomists of the twentieth century, together with some scientists, such as Giulio Chiarugi, Giovanni Vitali, and others. He was also a member of a new generation of anatomists. They had continued the tradition of the most famous Italian scientists, which started from the Renaissance up until the nineteenth century. Although he carried out important studies of neuroanatomy and comparative anatomy, as well as embryology, his name is rarely remembered by most medical historians. His name is linked to the nucleus he discovered: the Staderini nucleus or intercalated nucleus, a collection of nerve cells in the medulla oblongata located lateral to the hypoglossal nucleus. This article focuses on the biography of the neuroanatomist as well as the nucleus that carries his name and his other research, especially on comparative anatomy and embryology.     

Effectiveness of FRCM Reinforcement Applied to Masonry Walls Subject to Axial Force and Out-Of-Plane Loads Evaluated by Experimental and Numerical Studies

ABSTRACT

An experimental campaign and a numerical analysis devoted to the investigation of the out-of-plane behavior of masonry walls reinforced with Fiber Reinforced Cementitious Matrix (FRCM) are presented here. The main goal of this study is to analyze and evaluate the effectiveness of the strengthening system, by discussing failure modes and capacity of strengthened masonry walls, in order to assess their behavior under out-of-plane horizontal actions, such as, for example, seismic actions. A purposely designed experimental set-up, able to separately and independently apply an axial force and out-of-plane horizontal actions on masonry walls, was used. Experimental results are discussed and compared with the outcomes of nonlinear analyses performed on simplified finite element models of the walls. A proper evaluation of the flexural capacity of FRCM strengthened walls is the first step of the ongoing process of drawing reliable code guidelines leading to a safe design of strengthened masonry structures.     

Seismic Vulnerability Assessment of the Urban Building Environment in Nablus,Palestine

ABSTRACT

This article describes a specifically developed framework to produce a seismic physical vulnerability model of residential buildings in Nablus (Palestine) within the European project SASPARM2.0. Based on the structural taxonomy of the territory, two different forms were defined to collect geometrical and structural data of buildings by different stakeholders (citizens and practitioners). This data was then employed to produce fragility curves using the mechanics-based procedure SP-BELA. To estimate seismic risk, the developed fragility model was combined with a hazard curve for the corresponding location. The described procedure is implemented in a WebGIS platform that allows to georeference and assess the surveyed buildings and define retrofitting strategies. Finally, the article carries out a comparison between the fragility curves of buildings in Nablus and the ones calculated for similar building typologies within a UNDP Jordan project aiming at the integrated risk assessment in Wadi Musa and surroundings.     

New Indices for the Existing City-Centers Streets Network Reliability and Availability Assessment in Earthquake Emergency

During earthquake emergencies in existing city-centers, streets network permits inhabitants to reach safe areas, and rescuers to access damaged zones and help population. However, the network can suffer from blocks due to debris of collapsed or heavily damaged buildings. Understanding urban fabric modifications and classifying elements vulnerability are fundamental steps while dealing with risk-assessment and risk-reduction strategies. This article offers a first quick approach for assessing seismic vulnerability of paths network by considering interferences with building heritage damages. Quick data about existing urban fabric (e.g., buildings typology; streets and buildings geometries) are combined for developing new vulnerability indices for streets network. The earthquake macroseismic intensity is introduced for evaluating probable street blockages and summarizing the overall rating of risks in critical network locations, thus intensity that is not included in other current quick methods for streets-building interference is here taken into account. Risk-reduction strategies based on the proposed indices could minimize the interventions on architectural heritage, maximizing the safety of evacuees. These new indices could be combined with traditional assessment of buildings vulnerability, and evaluations on pedestrians’ and vehicles evacuation flows, for evaluating management strategies.