Bayesian Spatial Filtering for Hedonic Models: An Application for the Real Estate Market

This article presents a Bayesian method based on spatial filtering to estimate hedonic models for dwelling prices with geographically varying coefficients. A Bayesian Adaptive Sampling algorithm for variable selection is used, which makes it possible to select the most appropriate filters for each hedonic coefficient. This approach explores the model space more systematically and takes into account the uncertainty associated with model estimation and selection processes. The methodology is illustrated with an application for the real estate market in the Spanish city of Zaragoza and with simulated data. In addition, an exhaustive comparison study with a set of alternatives strategies used in the literature is carried out. Our results show that the proposed Bayesian procedures are competitive in terms of prediction; more accurate results are obtained in the estimation of the regression coefficients of the model, and the multicollinearity problems associated with the estimation of the regression coefficients are solved.     

‘Supplicant Nationalism’ in Slovakia and Wales: Polyethnic Rights During the Nineteenth Century

During the nineteenth century, nationalists in Wales and Slovakia attempted to promote national goals by attempting to persuade English and Hungarian leaders to freely grant collective rights to the ‘subordinate’ nation. This strategy of ‘supplicant’ nationalism included effusive declarations of loyalty to the common state, exaggerated claims to moral superiority, and flattering comments about the ‘dominant’ nation. Supplicant nationalism closely resembles what Will Kymlicka called the struggle for ‘polyethnic rights’, but can still be seen as a form of nationalism.     

Australian bicameralism as semi-parliamentarism: patterns of majority formation in 29 democracies

The article analyses the type of bicameralism we find in Australia as a distinct executive-legislative system – a hybrid between parliamentary and presidential government – which we call ‘semi-parliamentary government’. We argue that this hybrid presents an important and underappreciated alternative to pure parliamentary government as well as presidential forms of the power-separation, and that it can achieve a certain balance between competing models or visions of democracy. We specify theoretically how the semi-parliamentary separation of powers contributes to the balancing of democratic visions and propose a conceptual framework for comparing democratic visions. We use this framework to locate the Australian Commonwealth, all Australian states and 22 advanced democratic nation-states on a two-dimensional empirical map of democratic patterns for the period from 1995 to 2015.     

Views,use and reception of visualisations of development proposals impacting cultural heritage

Visualisations of land-use projects have become an important part of the planning process. Using a survey of heritage professionals’ attitudes towards visualisations as a starting point, this article addresses tensions between the expressed usefulness of visualisations and critical attitudes towards the lack of ‘objectivity’ of visual representation and the risk of manipulation for strategic purposes. Moving from the survey, the article discusses how visual representations of development proposals became part of a Norwegian public dispute over the expansion of a shopping centre in a historic town. Furthermore, our aim is to introduce a social semiotic approach for analysing visualisations at historic sites. Finally, we discuss some theoretical implications of negotiating visualisations, with emphasis on the recent debate about representational and non-representational theories in heritage studies.     

Evaluation of Structural Intervention in the Quartel das Esquadras,Almeida (Portugal)

ABSTRACT

The “Quartel das Esquadras” is an 18th century infantry barrack located within the limits of the bulwarked fortress of Almeida, in Portugal. An ongoing adaptive reuse project of the building aims to recover its full capacity and also its importance, by implementing a variety of new uses. The architectural intervention results in the need of the structure to withstand new and diverse imposed loads. As the current configuration of the structure will be altered, the main objective of this article is to evaluate the suitability of some of the proposed structural interventions. The current condition has been characterized following a multidisciplinary approach comprising historical research, visual inspection, non-destructive testing, and structural analysis to identify the possible sources of major structural problems. A portion of the building particularly affected by the alterations has been selected to carry out structural analysis. A comparative safety assessment of the selected area in both current and altered condition has been done through finite element modelling and nonlinear static analysis, resulting in an identification of the weaker points against the new implemented loads and alterations. Finally, proposals for the implementation of the studied intervention, as well as recommendations for future research and analyses, have been given.     

Middle Bronze Age Arsenical Copper Alloys in Southern Portugal

In the Iberian Peninsula, the copper metallurgy from the Chalcolithic to the Middle Bronze Age (MBA) was mostly characterized by low arsenic contents. A collection of 53 MBA artefacts from southern Portugal was analysed by micro‐EDXRF, optical microscopy, SEM–EDS and Vickers to investigate the metal composition and manufacture. No technological distinction was found between artefacts from domestic and funerary contexts, which were radiocarbon‐dated to 2000–1500 cal bc . The arsenic contents of almost 100 MBA artefacts from this region, including the above‐mentioned set, have a Gaussian distribution with a high average (3.9 wt% As). Possible explanations are discussed for this distinctive metallurgy at the south‐western end of the Iberian Peninsula.