Competitive Multifacility Location on Networks: the (r∣Xp)‐Medianoid Problem

Abstract.  We investigate the ( r ∣ X _p )‐medianoid problem for networks. This is a competitive location problem that consists of determining the locations of r facilities belonging to a firm in order to maximize its market share in a space where a competitor is already operating with p facilities. We consider six scenarios resulting from the combination of three customer choice rules (binary, partially binary, and proportional) with two types of services (essential and unessential).
Known discretization results about the existence of a solution for the set of nodes are extended. Some examples and computational experience using heuristic algorithms are presented.     

Analysis of Interregional Labor Migration in Spain Using Gross Flows

In this paper we study the economic determinants of Spanish interregional labor force flows from an aggregate perspective. The study is based on a matching model of the labor market applied to migration, and uses gross rather than net flows as other studies do. Among the main results, we find that unemployment increases out-migration because unemployed people search more actively, but when the unemployment rate is above a certain level this effect is reduced. We also find that the rate of change of relative wages is a significant determinant of migration in Spain.     

New tools for rock art modelling: automated sensor integration in Pindal Cave

This paper presents the integration of automated sensors based on a terrestrial laser scanner and an amateur digital camera with the aim of generating a photorealistic three-dimensional (3D) model of the Principal Panel in Pindal Cave (Spain). The approach developed for 3D modelling overcomes many of the problems related to the independent implementation of photogrammetry and laser scanning. Particularly, a sequential and hierarchical approach was developed based on the processing and matching of images from the camera (camera image) and the laser scanner (range image). The results obtained demonstrate that the workflow for this model is automatic, effective, and accurate. The presented approach was found to create hyper-realistic models, even improving upon human visual capabilities.     

Analysing Contemporary Metropolitan Spatial Plans in Europe Through Their Institutional Context,Instrumental Content and Planning Process

This article sets out to propose and apply a qualitative framework for thinking about how to analyse and compare metropolitan spatial plans in a milieu of divergent spatial planning traditions and discretionary planning practices. In doing so, the article reviews and develops an understanding concerning the institutional context, instrumental content and planning processes associated with four contemporary metropolitan spatial plans in Europe, namely those of London, Copenhagen, Paris and Barcelona. Through the results of a multiple case study and a subsequent cross-comparative analysis, the article stresses that contemporary metropolitan spatial plans tend to merge the characteristics associated with project-based and strategy-based spatial plans, thus contrasting with the typical land-use character of municipal plans and the often strategic, growth-oriented pursuit of regional plans in Europe. In this sense, the metropolitan scale is treated less explicitly as a planning scale per se; rather, it tends to emerge as a “concealed” scale between municipal and regional scales and also between local and regional knowledge in planning. Moreover, the analysis suggests that while metropolitan plans seem to converge in terms of their general themes, they cannot be ultimately “typified” in view of ad hoc variations related to their institutional contexts, instrumental contents and planning processes.     

‘Brazil,Tell Me How It Feels’: Soccer,Music, Narcissism,and the State,or Mascherano’s Failure

During Brazil's 2014 World Cup finals, Argentine fans popularized a chant that stated “Brazil, tell me how it feels”. The chant became viral, and produced a Brazilian response, “Argentina, me diz que se sente”: both discussed relationship of rivalry by joking at the other's expenses. But it was surprising that the chant was based on the melody of a very old song from the American rock band Creedence Clearwater Revival, recorded in 1969, possibly before the birth of those who sang the melody in Brazil (“Bad Moon Rising”, a very popular song recorded many times). This paper discusses several topics derived from that fact: the relationship between popular music and football chants; the uses of popular music and global pop at the World Cups from 1962 to our days; the self-presentation of the “local” (national) fans before a globalized media scene; and, last but not least, the role of sport icons and heroes for the fans but also for the construction of national epics (the icons and heroes invoked in the chants included, obviously, both Maradona and Messi, two of the most important football heroes from the ‘80s until today). The core idea is to show how contemporary football culture must be described and interpreted in the continuous intersection of local texts -and fans’ practices- and global events.     

Juan Moreira: Romantic Outlaw,Liberal Hero

Since its appearance in 1879–1880, Juan Moreira has been read as an illiberal novel, casting its eponymous hero (the historical bodyguard and electoral henchman of the same name) as a metaphor for the plight of variously-defined subalterns in liberal and neoliberal Argentina, and a condemnation of the social order they brought about. Contrary to that assumption, and reading the novel in its original context (the newspaper La Patria Argentina, in the months leading up to the Buenos Aires rebellion that would settle the fate of Buenos Aires, and end the cycle of civil wars in Argentina), the article argues that Moreira should be read as an strictly liberal novel, inventing a version of the gaucho not as a premodern barbarian (i.e. Sarmiento’s version) but as the embodiment of a modern liberal notion of subject (and citizen, even citizen-in-arms), produced by a functional market economy and a modernizing state, whose descent into criminality is a consequence and a cautionary tale not of the evils of the liberal order, but of what for Gutiérrez was the illiberal (at the same time conservative and barbaric) embodied in his political opponents presidents Nicolás Avellaneda and Julio Argentino Roca.     

The Trouble with Propaganda: the Second World War,Franco's Spain,and the Origins of US Post-War Public Diplomacy

This paper explores the internecine conflict that characterised and undermined US propaganda toward neutral Spain in the Second World War. These tensions primarily confronted those who saw US propaganda as an ideological weapon of mass persuasion in a crusade against Fascism with those who defended that US informational and cultural operations should be subservient to traditional diplomacy, and so be limited to explaining US foreign policy and advancing bilateral friendship. In addition, the article argues that the unambiguous subordination of propaganda to diplomacy that characterised US public diplomacy during the cold war was one of the lessons learnt out of the civil war that US propagandists fought over Spain between 1941 and early 1945.     

Lost writing uncovered by laser two-photon fluorescence provides a terminus post quem for Roman colonization of Hispania Citerior

In this work, two-photon absorption fluorescence is used as a non-destructive method to detect the presence of paint upon an archaeological sample. The objective was to recover writing that, due to the discoloration caused by the passage of the time, was barely readable. The technique has been successfully applied to determine the consular date painted upon the neck of a Dressel 1A amphora found in the Roman village of Iesso (Guissona), in Catalonia. The identification of the consular date provides a terminus post quem for the foundation date for the city as well as a starting date for the Roman colonization of Hispania Citerior.     

The Conception of Hull Shape by Shell‐builders in the Ancient Mediterranean

Did ancient Mediterranean shipbuilders at the turn of the first millennium have methods to pre‐design the shape of their hulls prior to the construction of the ship? If so, can these methods be identified? This paper proposes that ancient shipwrights were in possession of such design methods, based on geometry, that are comparable to the medieval and post medieval hull‐design procedures called whole‐moulding. These methods are well suited to be transformed into rules‐of‐thumb, therefore allowing the storage and transmission of accumulated knowledge. The implications of this proposal on the present understanding of the transition from shell‐ to skeleton‐building are explored.