Coefficient stability and structural change in the Spanish economy

The main aim is the study of coefficient stability using comparative analyses of Spanish input–output tables of recent decades. We try to provide answers to questions related to the nature and intensity of changes in the production structure, implementing procedures both of a direct nature as well as of an indirect one, following Mesnard’s proposal. We further raise the possibility of forecasting branch evolution by means of demand-driven or supply-driven models, depending on coefficient stability, in accordance with the work of Ranko Bon.

PMICALC: An R code-based software for estimating post-mortem interval (PMI) compatible with Windows,Mac and Linux operating systems

In legal medicine the correct determination of the time of death is of utmost importance. Recent advances in estimating post-mortem interval (PMI) have made use of vitreous humour chemistry in conjunction with Linear Regression, but the results are questionable. In this paper we present PMICALC, an R code-based freeware package which estimates PMI in cadavers of recent death by measuring the concentrations of potassium ([K+]), hypoxanthine ([Hx]) and urea ([U]) in the vitreous humor using two different regression models: Additive Models (AM) and Support Vector Machine (SVM), which offer more flexibility than the previously used Linear Regression. The results from both models are better than those published to date and can give numerical expression of PMI with confidence intervals and graphic support within 20 min. The program also takes into account the cause of death.     

Capitalizing on Criminal Accomplices: Considering the Relationship between Co-offending and Illegal Earnings

This study investigates whether co-offending offers an avenue towards criminal success. Specifically, it considers if current and prior co-offending experience is related to the probability of reporting illegal earnings as well as the amount of these earnings. Using data from the Pathways to Desistance Study, we estimated fixed-and random-effects models to test whether co-offending experience is related to self-reported illegal earnings. The models also estimated whether “historical” co-offending experience predicted current illegal earnings. Across both modeling strategies, current and historical co-offending predicted the probability of reporting non-zero illegal earnings, net of offending frequency and controls. There is minimal evidence of a relationship between co-offending experience and the amount of illegal earnings, however. These findings lead us to conclude that access to a relatively common criminal connection—the co-offender—offers tangible benefits to adolescent offenders, primarily by affecting their ability to translate criminal opportunities into monetary gain.     

Ink dating,part I: Statistical distribution of selected ageing parameters in a ballpoint inks reference population

The development of ink dating methods requires an important amount of work in order to be reliably applicable in practice. Major tasks include the definition of ageing parameters to monitor ink ageing. An adequate parameter should ideally fulfil the following criteria: it should evolve as a function of time in a monotonic way, be measurable in a majority of ink entries, be as accurate and reproducible as possible, and finally it should not be influenced too much by transfer and storage conditions. This work aimed at evaluating the potential of seven ageing parameters for ink dating purposes: the phenoxyethanol quantity, relative peak areas (RPA), three solvent loss ratios (R%, R%*, NR%) and two solvent loss parameters (R_NORM, NR_NORM). These were calculated over approximately one year for 25 inks selected from a large database to represent different ageing behaviours. Ink entries were analysed using liquid extraction followed by GC/MS analysis. Results showed that natural ageing parameters (NR% and NR_NORM) were not suitable ageing parameters for ink entries older than a few weeks. RPA used other compounds present in ink formulations in combination to PE in order to normalise the results. However, it presented particular difficulties as they could not be defined for all inks and were thus applicable only for 64% of the studied inks. Finally, the PE quantity, R% and R_NORM allowed to follow the ageing of the selected inks over the whole time frame and were identified as the most promising. These were thus selected to test three different interpretation models in the second part of this article. The possibilities and limitations of ink dating methods will be discussed in a legal perspective.     

Cross-border marriages as a side door for paid and unpaid migrant workers: the case of marriage migration between China and Japan

Cross-border marriages between Chinese and Japanese over the past twenty years have expanded in scale and taken on new forms. The special case of Japan lies in the implication of local authorities in the promotion of these marriages, locating the matrimonial migratory route at the crossroads of familial migration and work migration from the point of view of both the migrants themselves and the host communities. Marriage migrants in Japan are one of the variations of the transfer of a feminine workforce to ensure reproductive work. While migratory policies in Japan have generally appealed to side doors for unqualified immigration, local authorities have helped create extra side doors via marriage to provide support in the context of the restructuring of reproductive work. Migrant wives also represent a potential salaried foreign workforce especially in peripheral zones which have difficulty attracting migrants. An analysis of the participation of these migrants in both reproductive and productive work (remunerated or not) enables us to better understand the contemporary debate that feminized migratory routes tend to reinforce patriarchal norms.     

Foreign Direct Investment in China: Determinants and Effects

This paper attempts to assess the determinants of Foreign Direct Investment (FDI) in China and its effects on the whole economy. After presenting the main theoretical contributions and the previous works done about China’s inward-FDI, an empirical study has been implemented extending the previous ones with a different data set (more recent) and with different methodologies. The traditional determinants of FDI seem to be relevant for China: domestic market size, cost advantages and openness to the rest of the world. Concerning the consequences of FDI on the Chinese economy, our empirical evidence supports the view that FDI affects China’s growth through the diffusion of ideas. Through the introduction of new ideas, multinational firms develop technical progress and hence long-run economic growth. The transmission of ideas seems to have had a positive effect on the Chinese growth.     

Detection and quantification of the age-related point mutation A189G in the human mitochondrial DNA

Mutation analysis in the mitochondrial DNA (mtDNA) control region is widely used in population genetic studies as well as in forensic medicine. Among the difficulties linked to the mtDNA analysis, one can find the detection of heteroplasmy, which can be inherited or somatic. Recently, age-related point mutation A189G was described in mtDNA and shown to accumulate with age in muscles. We carried out the detection of this 189 heteroplasmic point mutation using three technologies: automated DNA sequencing, Southern blot hybridization using a digoxigenin-labeled oligonucleotide probe, and peptide nucleic acid (PNA)/real-time PCR combined method on different biological samples. Our results give additional information on the increase in mutation frequency with age in muscle tissue and revealed that the PNA/real-time PCR is a largely more sensitive method than DNA sequencing for heteroplasmy detection. These investigations could be of interest in the detection and interpretation of mtDNA heteroplasmy in anthropological and forensic studies.