Knowledge Production,Mobilization and Standardization in Chile’s HidroAysén Case

The Aysén Hydroelectric Project in Chilean Patagonia proposed the construction of the country’s largest power facility to supply its capital, nearly 2,000 kilometres away. We seek to explain the way science, politics, law, business and the civilian population are joined up. To this end, we analyse the project’s evolution, the construction of techno-scientific arguments by the participants and how Chilean regulations are adapting to this process.     

The student–teacher relationship quality in children with selective mutism

Selective mutism (SM) is a rare anxiety disorder that compromises children's daily life during critical periods of early development. Because school is a prime context for the manifestation of the disorder, the aim of this study was to investigate the quality of the student–teacher relationship and its effects on behavior and work, and on social and relational skills. The sample consisted of 75 children—15 were affected by SM, with 60 in the control group—and 15 teachers. The results showed greater difficulty on the teacher's part to establish a relationship based on affective closeness with a child affected by SM, compared to that with unaffected children. Nevertheless, an encouraging picture emerges of the inclusion and integration of the child with SM among peers and therefore in the class group.     

Achievement Outcomes Among High School Graduates in College and Career Readiness Programs of Study

This study investigated the relationships between completing the high school portion of a college- and career-preparatory program of study and high school achievement outcomes in a large urban district in the West. Programs of study are secondary-to-postsecondary educational programs mandated by the federal legislation (Perkins IV) governing career and technical education (CTE) in the United States. At graduation, 49.5% of students in the sample who began a program of study had completed their programs. Using multiple regression models, we compared graduates who completed a program of study (hereafter POS completers) to graduates who completed a number of CTE courses in a specific occupational area (CTE concentrators), and to graduates who may have taken a CTE course or two during high school but were neither POS completers nor CTE concentrators (All Others). POS completers were more likely to (a) have a higher overall GPA, (b) have a higher CTE GPA, and (c) earn more STEM (science, technology, engineering, and mathematics) credits than All Other students. Compared with CTE concentrators, POS completers were more likely to (a) have a higher overall GPA and (b) earn more STEM credits. Qualitative data describe contextual elements of programs of study as offered in West District that could explain these results. Study results suggest that districts should consider implementing career-themed programs such as programs of study that enhance their existing college- and career-readiness initiatives. We also call for further study of the postsecondary and labor market outcomes associated with programs of study in order to generate a clearer picture of their potential to increase academic and technical achievement and promote successful student transitions to higher education and the workplace.     

Quantitative evaluation of alternative field normalization procedures

Wide differences in publication and citation practices make impossible the direct comparison of raw citation counts across scientific disciplines. Recent research has studied new and traditional normalization procedures aimed at suppressing as much as possible these disproportions in citation numbers among scientific domains. Using the recently introduced IDCP (Inequality due to Differences in Citation Practices) method, this paper rigorously tests the performance of six cited-side normalization procedures based on the Thomson Reuters classification system consisting of 172 sub-fields. We use six yearly datasets from 1980 to 2004, with widely varying citation windows from the publication year to May 2011. The main findings are the following three. Firstly, as observed in previous research, within each year the shapes of sub-field citation distributions are strikingly similar. This paves the way for several normalization procedures to perform reasonably well in reducing the effect on citation inequality of differences in citation practices. Secondly, independently of the year of publication and the length of the citation window, the effect of such differences represents about 13% of total citation inequality. Thirdly, a recently introduced two-parameter normalization scheme outperforms the other normalization procedures over the entire period, reducing citation disproportions to a level very close to the minimum achievable given the data and the classification system. However, the traditional procedure of using sub-field mean citations as normalization factors yields also good results.     

The Effects of Vertical Integration on the Release of New Films

This article both theoretically and empirically addresses how a vertical structure in the motion pictures industry determines the number of prints a distributor releases of a new film. A simple theoretical model shows that the optimal number of copies is increasing on the expected demand for the film and the revenue share of the distributor and decreasing on the cost of each copy. The model also predicts that the optimal number of copies will decrease with the number of theaters that are vertically integrated with the distributor, as long as running a cinema requires financing a non-negligible cost of capital. The theoretical results are empirically tested using a very rich dataset of films' exhibition patterns in the major Chilean markets. The empirical results show that, on average, a non-integrated distributor releases 8 more copies than an integrated distributor.