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.     

Rural futures? Mapping newcomers' hopes about potential resettlement in Canadian rural areas

The Canadian government recently launched initiatives to promote immigrant settlement outside of traditional gateway cities, in small towns and rural areas. These initiatives attempt to mitigate socio-economic impacts of population decline, and address barriers to successful integration in urban areas. Drawing on the geographies of hope, this paper examines how newcomers navigate hopes as they imagine rural resettlement in Ontario. Based on focus groups with immigrants (n = 50), the findings suggest that newcomers' imagined rural futures are a dynamic and mobile process, shaped by competing hopes for a stable life. Rural imaginaries can sometimes provide a generative space to realize hopes and develop new future aspirations, other times they can constrain hopes for intergenerational futures. We contend that newcomer hopes arise in moments of relocation uncertainty, shaped by competing visions, interests, and priorities at individual and collective scales. Newcomers' expectations of rural futures are always enlivened with a sense of optimism for what has not yet become, but are equally replete with angst and anxiety for the future. This article concludes that future geographic research on migration-hope-place interactions, particularly in the health subfield, should engage constructions, experiences, and enactments of hope that mediate relocations and the policies governing them.     

The site of Al-Qurainiyah: Topography and phases of an early Islamic coastal settlement on Failaka Island

This paper presents the latest finds from the early Islamic site of Al-Qurainiyah on Failaka Island, Kuwait. Trenches opened to the west of the main late Islamic village led to the identification of residential buildings and a workshop located along the shoreline, while the pottery assemblage suggests a permanent occupation from at least the seventh century CE to the early ninth century CE. The last two years of excavations allowed us to uncover archaeological contexts that seem to indicate a previous occupation, dating to the late Hellenistic period (second century BC). The long-term occupation, strategic position of the settlement facing a wide and well-sheltered lagoon, as well as the installation of a stable settlement in the same period of Al-Qusur—the main early Islamic site of the island—seem to suggest the interpretation of Al-Qurainiyah as a landing place used both in the early Islamic period and beforehand.     

THE PUZZLE OF JOB SEARCH AND HOUSING TENURE: A RECONCILIATION OF THEORY AND EMPIRICAL EVIDENCE

Oswald's thesis posits that homeowners should have longer unemployment spells than renters due to restricted mobility, but repeatedly the reverse is found. I contribute to solve this puzzle analyzing both job search intensity and unemployment duration. First, I show that homeowner's mobility constraints have a negative impact on search. Theoretically, it is shown in a search model with moving costs. Using U.K. Labour Force Survey (LFS) data, it is confirmed when considering outright owners, while leveraged owners have the highest search. Second, I find evidence that homeowners select search methods associated with shorter unemployment spells, suggesting that they search more efficiently.     

Compensation modes of border effects in cross‐border regions

Both international and regional economics discuss borders as barriers to economic growth. They hamper trade flows between areas sharing an international border (a demand effect), as well as causing firms’ inefficiency because of the increase in production costs (supply side). In the theoretical and empirical discussions, no question has been raised on whether regional economies are able to set up compensation mechanisms, by replacing low endowments with high efficiency in the use of existing assets, or by compensating an inefficient use of internal assets with an efficient use of external ones. The reply to this question has normative implications. Empirical evidence on the universe of 1,398 European NUTS3 regions is presented and policy suggestions elaborated.     

The Origin of Alliances: From Sparta to the EU’s Solidarity Clause

Abstract

According to the International Relations theory known as Realism, interstate interactions, whether ancient or modern, are motivated by the pursuit of hegemony of individual states, which act as monolithic groups in articulating their foreign policy decisions. The application of Realism to the study of Spartan foreign policy in the third century BC shows the validity of this theory in explaining certain aspects of ancient interstate interactions, as illustrated by the two alliances discussed in this article. The first, earlier alliance, between King of Macedonia Antigonos Gonatas and Sparta and some Peloponnesian cities, was made in response to the threat posed by King Pyrrhus of Epirus who was set on conquering them. The later alliance, between Sparta and other states, was made to stop the ambitions of King Antigonos Gonatas who controlled many cities of the Peloponnese and sought to conquer the whole of Greece. In forging such alliances, according to the Realist view, the states acted as large monolithic groups, yet a broader assessment of the available evidence shows the presence of smaller, subtler networks of individuals, which were paramount in articulating important foreign policy decisions. The comparison of Spartan decision making with the activation in 2009 of the EU’s Solidarity Clause, included in Article 222 of The Treaty on the Functioning of the European Union (TFEU), indicates that the activation of this clause too required the consensus of several European governing bodies. By bringing to light the critical role played by smaller networks of power in foreign policy decision making in the ancient and the current-day EU alliances, this article exposes both the merits and the limits of the Realist international relations theory.