Intensity and Breadth of Participation in Organized Activities During the Adolescent Years: Multiple Associations with Youth Outcomes

The goal of this study was to examine initial levels and rates of change in the intensity and breadth of participation in organized activities during the adolescent years, and how these participation practices were related to youth outcomes in later adolescence. The main objectives were (a) to examine growth curves of intensity and breadth of participation from Grades 7 through 11 and their interrelations, and (b) to test the associations between these dimensions of participation and academic orientation, risky behaviors, internalizing problems, and civic development in Grade 11. A homogenous sample of 299 youth (mean age = 13.37, SD = .41; 62% girls) were surveyed annually using questionnaires and phone interviews. The main results revealed that (a) even though both intensity and breadth of participation decreased over time, intensity of participation showed steeper declines by later grades, and (b) initial levels of participation were better predictors of later outcomes than rates of change over time. Regardless of the levels of change taking place over time, results revealed that youth with high initial levels of participation (both intensity and breadth) were more committed to school and developed more positive values towards society by Grade 11 than those who participated less. This might suggest that a high level of participation during early-to-mid-adolescence is particularly important when it comes to later outcomes.     

A mixed-utility theory of vote choice regret

The paper builds upon an original pre- and post-election survey that we conducted before and after the 2015 Canadian election. Directly after Election Day, we asked Canadians for which party they voted, and whether they regret their choice. We find that 39% of them are not perfectly happy with their decision, and 4% even say that they made a bad decision. We show that the propensity to regret can be explained by a mixed-utility theory, whereby voters attempt to maximize a mixture of instrumental and expressive utilities. Our study contributes to the literatures on voting behaviour and political economy, which usually considers that voters are either instrumental or expressive, but not both at the same time.     

Interest groups and social media: An examination of cause and sectional groups' social media strategies in the EU

This paper examines social media use by cause and sectional interest groups in the European Union. The literature suggests that cause groups should focus on building a constituency more than sectional groups, because they do not offer exclusive benefits to their members. Cause groups face collective action problems more than sectional groups, so they have to take a proactive approach to community building. The nature of the causes cause groups lobby for is also more suitable for protest and thus calls to action. An in‐depth analysis of a random sample of 1,000 tweets by cause and sectional groups reveals differences with respect to social media use. Cause groups use social media to pursue two‐way communication with the public slightly—albeit not significantly—more than sectional groups. Cause groups mobilise the public to take action significantly and substantively more than specific interests.     

Negotiating a Korea – EU free trade agreement: easier said than done

A number of countries have chosen recently to shift away from an exclusive support to trade multilateralism and towards regional or bilateral trade agreements. Being no exceptions in this respect, the Republic of South Korea and the European Union have engaged in a bilateral FTA negotiation in early 2007. The objective of the paper is to account for the unexpected difficulties encountered in the negotiation. The paper starts with a brief overview of the trade and investment relations between the two partners and underlines the complementarity between the two partners, as well as their respective offensive and defensive interests. As a next step, the paper delves into the “politics” of the FTA negotiation with a view to highlighting the motivations and objectives of the various partners involved. It comes to the conclusion that the major reason why the negotiation turned out to be more complex than initially expected relates to the two partners’ diverging views as to what a discriminatory FTA should imply.     

Some aspects of science-based technological promotion

Scientific research car for scientific purposes. As such, scientific research will necessarily be evaluate scientific terms. However, scientific research can also be supported for such nonscientific purposes as economic development, industrialization, education, etc. In that case, evaluation of scientific research will be based on economic, educational, etc., yardsticks. This paper attempts to seek evaluation criteria for the public support of science for the purposes of technological promotion. Such a public investment is shown to be a risky process. The “riskiness” of the process is discussed within the framework of a model of science-based technology and expressed in stochastic terms. A decision-making framework is then developed on the basis of expected utility hypotheses.     

STR-genotyping from human medieval tooth and bone samples

We extracted the DNA contained in samples of bones and teeth from 10 skeletons excavated from the Gravette site (400-1000 AD, south of France). Ancient DNA was analysed by autosomal short tandem repeats (STRs). The DNA present in these ancient remains appeared very degraded, but nevertheless, better conserved in tooth than in bone samples. Moreover, we showed that the DNA extracted from ancient dental pulp was not exempt from polymerase chain reaction (PCR) inhibitors, which could result from extreme DNA fragmentation. An adapted protocol with a supplementary step of purification removed this inhibition.     

Echinococcal hydatid cyst at the right ventricle outlet with leakage to the pulmonary artery outflow causing follicular airway disease and sudden death

Postmortem examination of a 35-year-old parous woman who died suddenly revealed a hydatid cyst mass located at the right ventricular outlet, with a grossly discernible defect opening to the pulmonary outflow tract. Pulmonary hemorrhage, follicular bronchitis, and bronchiolitis also were present, with severe acute purulent exudation in the airways. Hydatid cyst complications must be kept in mind when dealing with sudden deterioration and death in patients who are residents of regions where echinococcosis is endemic.     

Inhalant abuse detection and evaluation in young Tunisians

Occupational exposure biological monitoring techniques were applied for the diagnosis of inhalation abuse and for the evaluation of the levels of exposure to benzene, toluene, ethylbenzene, xylenes, and n-hexane, in 44 Tunisian adolescents and children suspected for volatile substance addiction. Urinary trans,trans-muconic acid, hippuric acid (HA), mandelic acid, and methylhippuric acids determinations were performed by high performance liquid chromatography with a photodiode array detector, and urinary o-cresol (o-Cr) and 2,5-hexanedione (HD) were extracted simultaneously and measured using gas chromatography with a flame ionization detector. Given the high linearity ranges, HD and o-Cr occupational exposure monitoring techniques could be applied without modification. However, urinary sample dilution was necessary before HA analysis. Concentrations were compared with the maxima of normal values (MNVs) in the general population and to the biological exposure indices (BEIs) used in occupational toxicology. Values as high as 6610-fold the MNV and 68 times the BEI were registered. The subjects showed high exposure to toluene and hexane. Measured metabolites HA and/or o-Cr and HD enabled the easy detection and evaluation of exposure levels. The problem of inhalant abuse should be given more attention and treated through an effective prevention strategy.