Results of the 2003-2004 GEP-ISFG collaborative study on mitochondrial DNA: focus on the mtDNA profile of a mixed semen-saliva stain

We report here a review of the seventh mitochondrial DNA (mtDNA) exercise undertaken by the Spanish and Portuguese working group (GEP) of the International Society for Forensic Genetics (ISFG) corresponding to the period 2003-2004. Five reference bloodstains from five donors (M1-M5), a mixed stain of saliva and semen (M6), and a hair sample (M7) were submitted to each participating laboratory for nuclear DNA (nDNA; autosomal STR and Y-STR) and mtDNA analysis. Laboratories were asked to investigate the contributors of samples M6 and M7 among the reference donors (M1-M5). A total of 34 laboratories reported total or partial mtDNA sequence data from both, the reference bloodstains (M1-M5) and the hair sample (M7) concluding a match between mtDNA profiles of M5 and M7. Autosomal STR and Y-STR profiling was the preferred strategy to investigate the contributors of the semen/saliva mixture (M6). Nuclear DNA profiles were consistent with a mixture of saliva from the donor (female) of M4 and semen from donor M5, being the semen (XY) profile the dominant component of the mixture. Strikingly, and in contradiction to the nuclear DNA analysis, mtDNA sequencing results yield a more simple result: only the saliva contribution (M4) was detected, either after preferential lysis or after complete DNA digestion. Some labs provided with several explanations for this finding and carried out additional experiments to explain this apparent contradictory result. The results pointed to the existence of different relative amounts of nuclear and mtDNAs in saliva and semen. We conclude that this circumstance could strongly influence the interpretation of the mtDNA evidence in unbalanced mixtures and in consequence lead to false exclusions. During the GEP-ISFG annual conference a validation study was planned to progress in the interpretation of mtDNA from different mixtures.     

No exit and the organization of voice in biotechnology and pharmaceuticals

Although leadership is typically seen as coming from the leaders of governments and major institutions, a strong case can be made that concerned citizens first articulate important issues and policies that official leaders then pick up and promote. In a market-based society dominated by large corporations, Hirschman's framework of exit, voice, and loyalty can be used to relate consumer and grassroots movements to markets, when participants believe there is no exit and loyalty (or acquiescence) is not an option. While "voice" is usually applied to the individual or consumer level, this article develops the concept of organized voice and illustrates how it has exhibited leadership in the controversial relations between the biotech and pharmaceutical industries and society as a whole. The essay concludes by urging more research on organized voice as a source of leadership and by outlining some important dimensions for researchers to consider.     

Voter information and power dilution: Evidence from Sicilian provincial elections

Public Choice - It is generally accepted that an increase in the amount of voter information is desirable. As Reisman (1990) points out, a well-informed and committed electorate is better able to...     

Controlling Administrative Discretion Promotes Social Equity? Evidence from a Natural Experiment

Although social equity has been a formal pillar of public administration for decades, identifying mechanisms through which public officials inadvertently reproduce unfair conditions remains a relevant topic. In particular, it is important to understand how the habits and practices of street‐level bureaucrats may result in an unjust allocation of public resources. This article provides evidence on how the administrative discretion conferred on school principals may result in an efficient but unfair condition regarding the allocation of students across schools, thus undermining social equity. By exploiting a natural experiment, we are able to provide reliable evidence on how controlling administrative discretion decreases the segregation of students based on their socioeconomic status.     

Mr. Smith and the economy: the influence of economic conditions on individual legislator voting

This paper estimates the influence of macroeconomic conditions on individual legislator voting over time. Previous work shows legislator voting to be stable over careers. In this paper, voting on an ideological issue space (ADA scores) and a fiscal issue space (NTU scores), from 1976 to 2002, exhibits significant short-term cyclicality with economic conditions. Individual legislators polarize by party in response to rising unemployment, and converge in response to rising inflation. As legislators accumulate tenure, they become more ideologically conservative but more fiscally liberal. Results are also reported on presidential party, divided government, and region. All results are weaker in the Senate than in the House.     

Earnings and Caste: An Evaluation of Caste Wage Differentials in the Nepalese Labour Market

This paper examines the sources of wage differentials among castes in Nepal, a country which had, until 1963, an age-old caste-based social division of labour. We use an extended Oaxaca decomposition model with occupation and firm size augmenting the conventionally used measures of human capital endowments. Our results indicate that caste wage differentials in Nepal are large and that human capital endowments and lack of access to better paying occupations and larger firms have a significant impact. Furthermore, we find mixed evidence that the government policy of affirmative action has narrowed down the caste wage differential.     

Globalising cities at the crossroads of migration: Puebla,Tijuana and Monterrey

This article is part of a larger project that focuses in part on the migration dynamics in large Mexican metropolitan areas or globalising cities. In particular, it develops a comparative analysis of the urbanised region of Puebla-Tlaxcala, the metropolis of Monterrey and Tijuana. All three metropolitan areas are important industrial centres that attract rural–urban as well as interstate migrations. Moreover, these urban centres are situated at routes used by migrants from Central and South America to get to the US. Yet, despite the increasing impact of migration(s) on urban areas, very little is known about its characteristics and municipal authorities have not identified inward or transmigration as issues of political importance. For our analysis we intend to map the different migrations through addressing the following question: How are migrations transforming the urban areas of Monterrey, Tijuana and Puebla-Tlaxcala and how are they inserted in and contributing to urban assemblages in these metropolitan zones? For this particular article we have chosen three distinct migratory groups to contrast: Germans in Puebla-Tlaxcala, Haitians in Tijuana and Indigenous populations in Monterrey.