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The K+ and hypoxanthine (Hx) concentrations of the vitreous humour (VH) rise gradually after death, providing a means of estimating the post-mortem interval (PMI). The correlation between these analytes and the PMI is good since the vitreous chamber is partially isolated from autolytic events occurring elsewhere; the [K +] and [Hx] recorded is thus the result of changes within the eye. The present work provides a systematic review, following PRISMA recommendations, of 36 articles (3 reviews and 33 retrospective cohort studies) discussing the many procedures and regression models that have been developed for improving PMI estimates involving VH analytes. The results of a descriptive study are also provided, highlighting the causes and distribution of mortality as registered in medico-legal autopsies performed in 2019 in Galicia (northwestern Spain), and revealing the use of these PMI estimation methods in real forensic practice. Great heterogeneity was detected in the collection of VH samples, the treatments to which they were subjected before examination, and in their conservation and analysis. A lack of reproducibility in the analytical methods employed to estimate [K +] and [Hx] was noted, as well as an absence of external validation for most of the regression formulae used to determine the PMI from analyte values. The use of methods based on high-performance liquid chromatography, focal electrophoresis, or thermogravimetric/chemometric procedures might solve the problems encountered with traditional analytical techniques, offering reliable results more quickly and effectively (even when samples are contaminated). This study recommends using flexible multiple regression models that combine physical and chemical variables, and that population databases be constructed so that models can be properly validated. [ABSTRACT FROM AUTHOR]

This work proposes a novel indicator (HCWI) for evaluating water consumption efficiency in hotels. The indicator is built as a relative index that compares the current water consumption with an estimated minimum achievable value. To ensure the representativeness and applicability of the index, the evaluation of this water consumption baseline considers each water consumption micro-component individually and has been simplified, so it only requires fundamental characteristics of the hotel and those that are easy to identify and quantify. A value of the HCWI equal to one indicates the best water use efficiency that can be theoretically achieved with the technology available. On the contrary, larger values of the HWCI indicate high levels of water use inefficiency by the hotel. The applicability of the indicator is tested in six different hotels located in a touristic region in the north of Spain. [ABSTRACT FROM AUTHOR]

Private toll roads have experienced a notable worldwide expansion in the last two decades. In the early 1990s, many countries began to offer motorway concessions to private investors, most notably in Latin America, Central and Eastern Europe. In the late 1990s and 2000s, the innovation spread to countries in Asia, North America and Western Europe. The Spanish construction companies have been awarded many more concessions than their main rivals together, and they have become prominent in many of the countries with the most significant toll road programs. This paper analyses the competitive advantages that the Spanish companies have enjoyed in the international toll road industry in the last two decades. We argue that they have benefited from the fact that their home country was a pioneer in offering motorway concessions; from a cultural advantage in dealing with Latin America; and from their decision to integrate construction, concession, and investor functions in a single company. The paper also analyses to what extent the road concessions the Spaniards have won are generally profitable. [ABSTRACT FROM PUBLISHER]

In this paper, the applicability of the Newmark method at regional, sub-regional and site scales has been investigated in the Lorca Basin (Murcia). This basin is located in one of the most seismically active regions of Spain. The area is very interesting for studying earthquake-induced slope instabilities as there are well-known cases associated with specific earthquakes. For the regional and sub-regional scales, a geographic information system has been used to develop an implementation of Newmark sliding rigid block method. Soil and topographic amplification effects have been particularly considered. Subsequently, 'Newmark displacement' maps for deterministic seismic scenarios have been produced. Some specific studies have also been performed using limit equilibrium methods to estimate the safety factor and the critical acceleration of certain slope instabilities at a site scale. These instabilities were the rock slides related to recent seismic series at the Lorca Basin: 2002 Bullas ( M = 5.0) and 2005 La Paca ( M = 4.8). Finally, the safety factor, critical acceleration and Newmark displacement values estimated at different scales have been compared to determine which scale is most suitable for the Newmark method. [ABSTRACT FROM AUTHOR]

This paper estimates a hedonic price model which makes it possible to determine how the price of a unit varies with the set of attributes it possesses, in the Spanish housing market. Concretely, and by means of capitalisation, hedonic price models can be used as an instrument to capture how local public expenditures influence housing prices and, by extension, how homeowners can indirectly receive benefit from local public investment. Using individual data for dwellings from the city of Barcelona (Spain) for the period 1998-2001, it is found that local policies aimed at enhancing the quality of life or the location-speciic characteristic of the city of Barcelona have a positive impact on housing values. [ABSTRACT FROM AUTHOR]

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