Jeunes,participation politique et participation sociale en Suisse. Une étude de cas

L’étude aborde la relation entre participation politique et participation sociale auprès des jeunes au seuil de la vie adulte. Maints travaux sur le sujet prétendent que les jeunes sont de moins en moins attirés par la participation aux élections et/ou l'adhésion partisane et semblent privilégier un engagement de type associatif. Les résultats d'une étude de cas réalisée par les auteurs auprès de la Haute École spécialisée de la Suisse italienne ont montré que, durant cette période de la vie, marquée par le difficile processus de transition qui amène le jeune adolescent au statut d'adulte, la relation entre participation sociale et participation politique varie considérablement; cette variation pourtant, n'est pas linéaire, ce qui semble redevable, en partie du moins, des caractéristiques propres à ce processus de transition – de plus en plus long et complexe ‐ vers l’âge adulte.     

Editorial

Ohne Zusammenfassung

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Editorial

     

Editorial

Ohne Zusammenfassung

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Editorial

     

Real-time PCR designs to estimate nuclear and mitochondrial DNA copy number in forensic and ancient DNA studies

We explore different designs to estimate both nuclear and mitochondrial human DNA (mtDNA) content based on the detection of the 5' nuclease activity of the Taq DNA polymerase using fluorogenic probes and a real-time quantitative PCR detection system. Human mtDNA quantification was accomplished by monitoring the real-time progress of the PCR-amplification of two different fragment sizes (113 and 287 bp) within the hypervariable region I (HV1) of the mtDNA control region, using two fluorogenic probes to specifically determine the mtDNA copy of each fragment size category. This mtDNA real-time PCR design has been used to assess the mtDNA preservation (copy number and degradation state) of DNA samples retrieved from 500 to 1500 years old human remains that showed low copy number and highly degraded mtDNA. The quantification of nuclear DNA was achieved by real-time PCR of a segment of the X-Y homologous amelogenin (AMG) gene that allowed the simultaneous estimation of a Y-specific fragment (AMGY: 112 bp) and a X-specific fragment (AMGX: 106 bp) making possible not only haploid or diploid DNA quantitation but also sex determination. The AMG real-time PCR design has been used to quantify a set of 57 DNA samples from 4-5 years old forensic bone remains with improved sensitivity compared with the slot-blot hybridization method. The potential utility of this technology to improve the quality of some PCR-based forensic and ancient DNA studies (microsatellite typing and mtDNA sequencing) is discussed.     

No man’s land? A comparative analysis of the EU and Russia’s influence in the Southern Caucasus

The article investigates, through a comparative analysis, the different mechanisms of influence that the EU and Russia are projecting in their shared neighborhood in shaping domestic politics. It focuses on the economic and energy sectors in order to analyze two relevant policies for contrasting EU and Russia’s influence in the case of the Southern Caucasus. Contrary to commonly held opinions, Russian influence is receding in both areas and is a dominant external actor only in Armenia. In contrast, the EU is slowly increasing its presence in the economic area and has become a key player in the energy sector.     

A Spanish population study of 17 Y-chromosome STR loci

Haplotype, allele frequencies and population data of 17 Y-chromosome STR loci DYS19, DYS385, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS460 (GATA A7.1), DYS461 (GATA A7.2), GATA A10, GATA C4 and GATA H4 were determined from a sample of 148 unrelated male individuals from Spain. A total of 144 haplotypes were identified by the 17 Y-STR markers, of which 141 were unique, two were found in two individuals and one was found in three individuals. The haplotype diversity (99.95%) and discrimination capacity (97.30%) were calculated. Comparisons were made with previously published haplotype data on other Iberian population samples and no significant differences were found.