コートジボワール紛争にみる「保護する責任」の課題

本稿は、アフリカ開発にとって不可避の課題として認識されている紛争解決と平和構築の問題に関して、とくに国連や欧米諸国などのアフリカ域外の主体によって行われてきた軍事的取り組みの歴史と現状を考察しようとするものである。紛争解決・平和構築を目的として域外主体によって行われてきた軍事的取り組みは、1990年代のソマリアとルワンダでの経験を踏まえて試行錯誤が積み重ねられてきた。これを経て近年では、域外主体がアフリカ諸国の平和構築能力の強化を支援しつつ、国連PKOに代表される域外の軍事要員がアフリカ側と連携する体制が確立されてきている。本稿ではこのような歴史を整理したのち、アフリカの紛争解決・平和構築に深く関わる新しい考え方として注目されている「保護する責任」をめぐる問題を論ずる。具体的には、「保護する責任」に依拠して2011年4月にコートジボワールで行われた国連PKOによる軍事行動を取り上げ、「保護する責任」をめぐり提起されてきた諸論点が、この現実の軍事行動においてどのように現れていたかを検討したい。

コートジボワールは安定したのか -- ワタラ政権下の軍事的状況の総括と展望

本稿は1990年代以降続いてきたコートジボワールの不安定な状態が、2011年5月に正式発足したワタラ政権のもとで解消されたかどうかを検討する。着眼点はワタラ政権期の武装勢力の動向と、ワタラ政権の軍事的基盤をなすコートジボワール共和国軍（FRCI）とワタラの関係である。武装勢力の動向については、ワタラ政権の正式発足の時点で内戦期の軍事的対立の構図が基本的には解消され、その後もFRCI優位の軍事状況が継続していることがわかる。ワタラとFRCIの関係については、FRCI幹部の重要ポストへの登用が続いており、堅固な同盟関係が維持されていることが確認できる。しかし同時に、事態を不安定化に向かわせうる要因が今なお存在することも指摘できる。このためコートジボワールは一時期の不安定な状況をたしかに脱してはいるものの、安定化が十分に確立・制度化されるうえでは、軍の改革をはじめとする課題が解消される必要がある。

Results of MDR-1 vector modification trial indicate that granulocyte/macrophage colony-forming unit cells do not contribute to posttransplant hematopoietic recovery following intensive systemic therapy

To formally test the hypothesis that the granulocyte/macrophage colony-forming unit (GM-CFU) cells can contribute to early hematopoietic reconstitution immediately after transplant, the frequency of genetically modified GM-CFU after retroviral vector transduction was measured by a quantitative in situ polymerase chain reaction (PCR), which is specific for the multidrug resistance-1 (MDR-1) vector, and by a quantitative GM-CFU methylcellulose plating assay. The results of this analysis showed no difference between the transduction frequency in the products of two different transduction protocols: “suspension transduction” and “stromal growth factor transduction.” However, when an analysis of the frequency of cells positive for the retroviral MDR-1 vector posttransplantation was carried out, 0 of 10 patients transplanted with cells transduced by the suspension method were positive for the vector MDR-1 posttransplant, whereas 5 of 8 patients transplanted with the cells transduced by the stromal growth factor method were positive for the MDR-1 vector transcription unit by in situ or in solution PCR assay (a difference that is significant at the P = 0.0065 level by the Fisher exact test). These data suggest that only very small subsets of the GM-CFU fraction of myeloid cells, if any, contribute to the repopulation of the hematopoietic tissues that occurs following intensive systemic therapy and transplantation of autologous hematopoietic cells.

Origin of nanomechanical cantilever motion generated from biomolecular interactions

Generation of nanomechanical cantilever motion from biomolecular interactions can have wide applications, ranging from high-throughput biomolecular detection to bioactuation. Although it has been suggested that such motion is caused by changes in surface stress of a cantilever beam, the origin of the surface-stress change has so far not been elucidated. By using DNA hybridization experiments, we show that the origin of motion lies in the interplay between changes in configurational entropy and intermolecular energetics induced by specific biomolecular interactions. By controlling entropy change during DNA hybridization, the direction of cantilever motion can be manipulated. These thermodynamic principles were also used to explain the origin of motion generated from protein–ligand binding.

An Evaluation of Personal and Contextual Factors in Competitive Youth Sport

Because millions of youth are involved in sport, the sport context is important to consider in advancing the growth experiences of young people (Cˆot´e et al., 2007; Fraser-Thomas et al., 2005). Furthermore, research in developmental psychology has highlighted the value of structured programs, including sport, in helping to promote positive youth development (Fredricks & Eccles, 2006). Youth sport involvement has been linked to high levels of enjoyment (Scanlan et al., 1989), however, negative outcomes, such as burnout, have also been reported (Gould et al., 1996). In the present study, the Developmental Assets Profile (Search Institute, 2004) was used to explore personal (internal assets) and contextual (external assets) outcomes associated with youth sport. Results suggest that three particular assets (positive identity, empowerment, and support) are important to focus on in youth sport programs to decrease burnout symptoms and enhance enjoyment. Path analyses were also conducted to test a proposed model and exploratory results confirmed links of particular assets to sport outcomes. The results are discussed in terms of integration with Bronfenbrenner’s ecological theory (1999) and recommendations are suggested for sport programmers to consider to develop these assets within youth sport.

Tracing the Origins of Athlete Development Models in Sport: a Citation Path Analysis

Reviews of the sport psychology literature have identified a number of models of athlete development in sport (Alfermann & Stambulova, 2007; Durand-Bush &Salmela, 2001). However, minimal research has investigated the origins of knowledge from which each model was developed. The purpose of this study was to systematically examine the influential texts responsible for providing the basis of athlete development models in sport. A citation path analysis of the sport psychology literature was used to generate a knowledge development path of seven athlete development models in sport. The analysis identified influential texts and authors in the conceptualization of athlete development. The popula-tion of 229 texts (articles, books, book chapters) was selected in two phases. Phase1 texts were articles citing seven articles depicting models of athlete development(n  75). Phase 2 included texts cited three or more times by Phase 1 articles (n  154). The analysis revealed how the scholarship of Benjamin Bloom (1985) has been integrated into the field of sport psychology, and how two articles appearing in 1993 and 2003 helped shape present conceptualizations of athlete development

The Developmental Activities of Elite Ice Hockey Players

The purpose of this study was to analyze the development of four 20 year-old elite hockey players through an in-depth examination of their sporting activities. The theoretical frameworkof deliberate practice (Ericsson, Krampe, & Tesch-Romer, 1993) and the notion of deliberate play (Côté, 1999) served as the theoretical foundations. Interviews were conducted to providea longitudinal and detailed account of each participant.s involvement in various sporting activities. The interviewer asked questions about the conditions and sporting activities for eachyear of development. The data obtained were validated through independent interviews conducted with three parents of three different athletes. The results were consistent with Côté.s(1999) three stages of development in sport: the sampling (age 6.12), specializing (age 13. 15), and investment (age 16+) years

Sport-Specific Practice and the Development of Expert Decision-Making in Team Ball Sports

The role of sport-specific practice in the development of decision-making expertise in the sports of field hockey, netball, and basketball was examined. Fifteen expert decision-makers and 13 experienced non-expert athletes provided detailed information about the quantity and type of sport-specific and other related practice activities they had undertaken throughout their careers. Experts accumulated more hours of sport-specific practice from age 12 years onwards than did non-experts, spending on average some 13 years and 4,000 hours on concentrated sport-specific practice before reaching international standard. A significant negative correlation existed between the number of additional activities undertaken and the hours of sportspecific training required before attaining expertise, suggesting a functional role for activities other than sport-specific training in the development of expert decision-making.

Project SCORE! Coaches’ Perceptions of an Online Tool to Promote Positive Youth Development in Sport

Research points to the potential of youth sport as an avenue to support the growth of particular assets and outcomes. A recurring theme in this line of research is the need to train coaches to deliberately deliver themes relating to positive youth development (PYD) consistently in youth sport programs. The purpose of the study was to design and deliver a technology-based PYD program. Project SCORE! (www.projectscore.ca) is a series of 10 lessons to help coaches integrate PYD into sport. Four youth sport coaches completed the program in this first phase of this research and were interviewed. The goal of this study was to gain some insights from coaches as they completed the program. Positive comments about the program (i.e. ease of use, success of particular lessons, coach’s personal growth) and challenges regarding teaching positive skills to youth are discussed. These results helped to shape the program and make necessary changes so that it may be used for a larger research study. Other implications and future research directions are discussed.

An Exploration of Sociometric Status and Peer Relations in Youth Sport

More than 10 years ago, it was suggested that sociometry and systematic observation were two potentially useful but under-utilized methods for the study of peers in youth sport (Smith, 2003). Despite this call, the methods used to study peers in sport remain largely focused on athletes' perceptions through questionnaires and interviews. Thus, the purpose of this descriptive study was to investigate the utility of sociometry in relation to sport competence and observed athlete behavior in youth sport. Three adolescent female volleyball teams were videotaped during three practice sessions, and sport competence and sociometric status were assessed using questionnaires. An observational coding system was developed and used to code athlete behaviors and data were compared across sociometric status groups. Results revealed significant differences between sociometric status groups on peer ratings of sport competence, but not on athlete behavior. However, interesting findings emerged with respect to how status groups interacted with teammates and coaches. Thus, sport competence seems to be an important factor in gaining acceptance among youth peer groups. Further, sociometry and behavioral observation appear to be useful techniques that should continue to be employed in the study of peer relations in youth sport.