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.     

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.     

Masonry Italian Code-Conforming Buildings. Part 2: Nonlinear Modelling and Time-History Analysis

ABSTRACT

The unreinforced masonry (URM) buildings designed to be conforming with the Italian building code, as illustrated in the companion paper, were analyzed by performing time-history analyses on models realized using an equivalent frame approach and by adopting two different constitutive laws. Both the effect of record-to-record variability and of epistemic and aleatory uncertainties in modelling were explored. The achieved results constitute the basis for the evaluation of the risk level implicit in Italian code-conforming buildings. Two main performance conditions are considered, namely usability-preventing damage and global collapse limit states.     

Modeling and Seismic Response Analysis of Italian Code-Conforming Single-Storey Steel Buildings

ABSTRACT

This article describes the structural design, nonlinear modeling, and seismic analysis of prototype single-storey non-residential steel buildings made of moment-resisting portal frames in the transverse direction and concentric braces in the longitudinal direction. Various design parameters (building geometry, seismic hazard, foundation soil category) and different modeling assumptions (bare frame model, model including cladding elements, ground motions including vertical accelerations, and modeling uncertainties) were considered to investigate their effects on the simulated seismic performance.     

Seismic Reliability of Code-Conforming Italian Buildings

ABSTRACT

This paper presents and discusses some research results related to the seismic failure risk of standard, residential and industrial, buildings designed for damage, and life-safety according to the Italian seismic code, which is somewhat similar to Eurocode 8. The five considered structural typologies are as follows: masonry, cast-in-place reinforced concrete, precast reinforced concrete, steel, and base-isolated buildings. The archetype structures have been designed according to standard practice at three sites, representative of the seismic hazard across the country. Seismic risk is defined here as the annual rate of earthquakes able to cause structural failure in terms of usability-preventing damage and global collapse. For each structure, the failure rates have been evaluated in the framework of performance-based earthquake engineering, that is, via integration of site’s probabilistic hazard and structural fragility. The former has been computed consistently with the official hazard model for Italy that is also used to define design actions in the code. The latter has been addressed via nonlinear dynamic analysis of three-dimensional numerical structural models. Results indicate that, generally, design procedures are such that seismic structural reliability tends to decrease with increasing seismic hazard of the building site, despite the homogeneous return period of exceedance of the design seismic ground-motion.     

Der priesterkönig Johannes und sein Reich — Legende oder realität?

In the middle of the twelfth century rumours of a powerful Christian ruler beyond Islam, called Prester John, spread through Europe. In his vast kingdom, according to report, society was at peace and strange people, animals and plants, as well as valuable precious stones with miraculous powers, were to be found.At first this kingdom was sought for in India, then in the thirteenth century was transferred to Central Asia, and in the fourteenth to Ethiopia. Henry the Navigator and his captains tried to reach this powerful ruler in order to combine with him in attacking Islam in the rear. But it was only in 1517 that the Portuguese succeeded in contacting the Ethiopian ruler in person and helping him against his Islamic enemies. Through political ineptitude they made themselves unpopular, were persecuted, and finally in 1640 driven out of the country.Using an interdisciplinary approach based on history and ethnology, but also on geography, Germanistics and theology, an attempt is made here to decide if Prester John really existed and where his kingdom was, and, failing both possibilities, to ascertain who in the twelfth century had an interest in the ‘discovery’ of such a person, and to review the consequences of this ‘discovery’ in subsequent centuries.     

Identifying Stakeholders' Views on Sustainable Urban Transition: Desirability,Utility and Probability Assessments of Scenarios

The assessment of different urban planning scenarios by stakeholders can yield important insights which, in turn, inform sustainable urban transition. Yet to gain in-depth insight, this assessment needs to be multi-faceted and should go beyond a unidimensional “most/least desired” approach. Accordingly, we use indicators that distinguish between desirability, utility and probability assessments. We compare these assessments within and between various stakeholder groups based on a set of literature-based hypotheses. We constructed six planning scenarios, systematically varied with respect to sustainability for the case study, “Erlenmatt”, a major urban redevelopment area in Switzerland. Three stakeholder groups (housing suppliers, the non-profit & public sector and housing target groups, n?=?80) were investigated. The results of the statistical analyses suggest that more sustainable scenarios are preferred with respect to both their desirability and utility and that their probability is not lower than that of the other scenarios. The non-profit & public sector is the most pessimistic about the probability of a sustainable district while housing suppliers desire it less. We conclude that such detailed subjective scenario assessments can provide informative and detailed guidance for sustainable urban transition.     

‘Those European Chicken Littles’: Reagan,NATO, and the Polish Crisis, 1981–2

This article focuses on transatlantic relations in the run-up to and aftermath of the imposition of Martial Law in Poland in December 1981. Through an analysis of British, US, German, and NATO sources, this article highlights the fundamental differences and consequent disagreements that occurred between the Reagan administration and its European allies in 1981–2. It argues that these divergences originated from economic considerations, from a fundamentally discrepant conception of détente on the two sides of the Atlantic, and from the Reagan administration's mismanagement of the crisis. Not only did Reagan disregard NATO's contingency plans dating from 1980 and did not consult the allies, he also designed US sanctions specifically to dash a joint agreement between the Europeans and the Soviet Union for the construction of a pipeline that was to deliver Siberian gas into Western Europe.