Military Cuts and Conversion in the Defense Industry

The partial reorientation of the Soviet defense industry toward civilian production is examined by a prominent Western specialist in the context of the overall reduction in military spending. Provisions of the current program for conversion in the defense complex are analyzed with due consideration of anticipated effects on the economy at large. The author discusses the expected mix between civilian and military production within the defense industry, and notes the range and number of enterprises affected. Also outlined are the implications of the conversion program for military R&D and for the size and compensation of the workforce in the defense complex, journal of Economic Literature, Classification Numbers: P20, H56.     

Exploring poverty traps and social exclusion in South Africa using qualitative and quantitative data

Recent theoretical work hypothesises that a polarised society like South Africa will suffer a legacy of ineffective social capital and blocked pathways of upward mobility that leaves large numbers of people trapped in poverty. To explore these ideas, this paper employs a mix of quantitative and qualitative methods. Novel econometric analysis of asset dynamics over the 1993–98 period identifies a dynamic asset poverty threshold that signals that large numbers of South Africans are indeed trapped without a pathway out of poverty. Qualitative analysis of this period and the period 1998–2001 more deeply examines patterns of mobility, and confirms the continuation of this pattern of limited upward mobility and a low-level poverty trap. In addition, the qualitative data permit a closer look at the specific role played by social relationships. While finding ample evidence of active social capital and networks, these are more helpful for non-poor households. For the poor, social capital at best helps stabilise livelihoods at low levels and does little to promote upward mobility. While there is thus some economic sense to sociability in South Africa, elimination of the polarised economic legacy of apartheid will ultimately require more proactive efforts to assure that households have access to a minimum bundle of assets and to the markets needed to effectively build on those assets over time.     

Classroom Context,School Engagement,and Academic Achievement in Early Adolescence

Classroom context and school engagement are significant predictors of academic achievement. These factors are especially important for academically at-risk students. Grounded in an ecological systems perspective, this study examined links between classroom context, school engagement, and academic achievement among early adolescents. We took a multidimensional approach to the measurement of classroom context and school engagement, incorporating both observational and self-reported assessments of various dimensions of classroom context (instruction quality, social/emotional climate, and student–teacher relationship) and school engagement (psychological and behavioral engagement). Using data from the NICHD Study of Early Child Care and Youth Development, we tested whether school engagement mediated the link between classroom context and academic achievement among 5th grade students, and whether these pathways were the same for students with previous achievement difficulties identified in 3rd grade. Participants included 1,014 children (50% female) in 5th grade (mean age = 11). The majority of the participants were white (77%) and 23% were children of color. Results indicated that psychological and behavioral engagement mediated the link between classroom context and academic achievement for students without previous achievement difficulties. However, for students with previous achievement difficulties psychological and behavioral engagement did not mediate the link between classroom context and academic achievement. These results suggest that improving classroom quality may not be sufficient to improve student engagement and achievement for students with previous achievement difficulties. Additional strategies may be needed for these students.     

Engagement in after-school program activities: quality of experience from the perspective of participants

Middle school students’ experiences at after-school programs were compared as they participated in different types of activities and with different social partners. The students (N = 165) attended eight programs in three Midwestern states. A total of 1,596 experiences were randomly sampled using the Experience Sampling Method (ESM) during 1 week in the fall of 2001 and 1 week in the spring of 2002. Student engagement was conceptualized as the simultaneous experience of concentration, interest, and enjoyment. Students reported high levels of engagement while participating in sports activities and arts enrichment activities at the after-school programs, and low levels of engagement while completing homework at programs. They reported being more engaged in activities involving both adults and peers than activities with peers only. Concentrated effort, intrinsic motivation, and positive and negative mood states were also compared by program activities and social partners. Findings about participants’ subjective experiences and engagement in specific program activities have implications for understanding after-school programs as a context for youth development.

A Molecular Method to Detect Wound Cells in Bloodstains Resultant of Sharp Force Injuries for Crime Scene Reconstruction

Previous research by the authors on an animal model showed that bloodstains can contain additional information about their somatic origin in the form of wound cells. Bloodstains produced by a gunshot wound to the head were distinguished from bloodstains produced by a gunshot wound to the chest by testing the stains for a brain microRNA marker. In this study, the effectiveness of the technique was examined on blood drops shed externally from a stab wound to the liver of rat carcasses. Specifically, investigations were conducted on the liver microRNA marker, rno‐mir‐122‐3p, with the QIAGEN miScript System, and PCR analysis. Between the two stabbing methods used, 67% of the scalpel blades and 57% of the blood drops tested positive for rno‐mir‐122‐3p; however, other samples tested negative giving inconclusive results as to the wound‐of‐origin. The amount of the liver cells in the bloodstains appeared to be related to the extent of trauma.     

Multilingual Sentiment Analysis: A New Approach to Measuring Conflict in Legislative Speeches

Comparative scholars of legislative politics continue to face the challenge of measuring a key theoretical concept: conflict at the level of legislative bills. We address this challenge with a multilingual sentiment‐based approach and show that such a measure can effectively capture different types of parliamentary conflict. We also demonstrate that an automated translation of the dictionary yields valid results and therefore greatly facilitates comparative work on legislatures. Our applications show that a sentiment approach recovers government‐opposition dynamics in various settings. The use of a simple, translatable sentiment dictionary opens up the possibility of studying legislative conflict in bill debates across languages and countries.