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.     

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.     

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.     

Analysis of explosive damage in metals using orientation imaging microscopy

The goal of this project was to determine whether quantitative information concerning the size and nature of an explosive blast could be determined using Orientation Imaging Microscopy (OIM) to analyze the texture of blast-affected metal. Selected 1018 steel and 2024 aluminum samples were subjected to various explosive blasts chosen to simulate a wide range of possible pressure waves. The explosives used were PBX 9404, Comp-C4, Gelmax, and Bullseye. The explosive tests were carried out at Sandia National Laboratory, and the OIM analysis was conducted at Ames Laboratory. It was discovered that while suitable patterns could be obtained from the steel samples, the oxide layer present on the surface of the aluminum samples prevented these samples from being studied. The results of the OIM studies on the steel samples indicate that damage can be tracked using OIM imaging and that Comp-C4 seems to produce patterns significantly different than the other explosives.     

Breaking New Ground

<正>The first Sino-Egyptian joint archaeological dig marks a milestone in Chinese archaeology’s overseas cooperation For Gao Wei,breaking ground is nothing new.As a Chinese archaeologist,he has taken part in countless digs throughout the country.But when the f irst Chinese shovel hits the dirt in Egypt,as expected in October this year,it takes on special     

Fear of Crime or Fear of Life? Public Insecurities in Chile

Chile is regarded as one of the safest countries in Latin America. Crime rates are extremely low when compared to the rest of the region, and the police are widely considered to be efficient and trustworthy. Despite these objective trends, fear of crime is widespread throughout Chile. Why are Chileans so fearful when their country is so safe? We argue that fear of crime in Chile does not reflect fear of criminal acts per se, but is rather a manifestation of a wide range of daily insecurities. That is, fear of crime is rooted in other economic, social, and political insecurities featuring prominently in Chilean life today. To substantiate this argument, we test the ability of these “other” insecurities to predict fear of crime using a recent survey conducted by the International Labor Organization in 2001. We test our hypothesis alongside counterhypotheses prominent in the literature: social identity characteristics, victimization, trust in the media, urbanization, and community participation. We find that political, social, and economic insecurities best predict fear of crime; however, victimization, urbanization, and trust in the media are also significant. Our results suggest that scholars should study fear of crime not only as it relates to victimization and criminalization, but also in a context of insecurities generated by increasing rates of unemployment and poverty.