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Governments around the world use grant and loan programs to ease the financial constraints that contribute to socioeconomic gaps in college completion. A growing body of research assesses the impact of grants; less is known about how loan programs affect persistence and degree completion. We use detailed administrative data from Chile to provide rigorous regression discontinuity-based evidence on the impacts of loan eligibility for university students who retake the national admission test after their first year of studies. Those who score above a certain threshold become eligible for loans covering around 85 percent of tuition costs for the duration of their program. We find that access to loans increases by 20 percentage points the fraction who return to university for a second year, with two thirds of the effect arising from a reduction in transfers to vocational colleges and one third from a decline in the share who stop postsecondary schooling altogether. The longer-run impacts are smaller but remain highly significant, with a 12 percentage point impact on the fraction of marginally eligible retakers who complete a bachelor's degree.

The instrument Samples of Teaching Performance (STP) was developed to assess student teachers' capacity to plan, deliver and evaluate a unit of instruction. The current study reports consequential validity data collected from supervisors (n = 20) and student teachers (n = 62) from three elementary and five secondary teacher preparation programs in Chile that participated in the field-testing of the STP. Student teachers described how this assessment had honed their sense of professionalism and promoted learning of the skills assessed. Supervisors reported enlarging the topics discussed with student teachers and making some changes to the supervisory process. These findings are complemented by an analysis of the STP scores obtained by 24 student teachers, which showed better development of instructional skills when compared to pedagogical reasoning and reflection. These results raise questions about the structure of student teaching to support the implementation of standards-based assessments that entail tasks at different levels of cognitive complexity. (Contains 4 tables and 1 note.)

Describes the process and outcomes of a collaborative self-study by five Chilean teacher educators interested in improving their supervision of student teachers, examining problems they encountered as first-time writers of a self-study report. Guidelines for scaffolding supervisees' reflectivity are included (e.g., attend to supervisors' and student teachers' learning needs, attend to student teachers' biographies, and reassure student teachers that they are being supported). (SM)

Copyright of Brazilian Journal of Biology is the property of Instituto Internacional de Ecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archivos de Medicina Veterinaria is the property of Universidad Austral de Chile, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bioeconomic models can be used to assist producers and decision-makers in identifying optimal production system designs, operation management strategies, and alternative development and policy approaches. This paper reviews the literature on bioeconomic modelling in aquaculture since 1993 and builds on an earlier article by Leung (1994) which examines this literature for the 1974-1993 period. In order to identify the papers reviewed in the present study, a thorough online search in various databases and some specific journals was conducted. Observations on the general state-of-the-art of bioeconomic modelling in aquaculture are discerned based on a comparative analysis of work in the field, with specific reference to salmon aquaculture. Implications for salmon aquaculture systems in Chile and elsewhere are discussed. [ABSTRACT FROM AUTHOR]

Introduction: Genome-wide association studies (GWAS) are fundamental for identifying loci associated with diseases. However, they require replication in other ethnicities., Methods: We performed GWAS on sporadic Alzheimer's disease (AD) including 539 patients and 854 controls from Argentina and Chile. We combined our results with those from the European Alzheimer and Dementia Biobank (EADB) in a meta-analysis and tested their genetic risk score (GRS) performance in this admixed population., Results: We detected apolipoprotein E ε4 as the single genome-wide significant signal (odds ratio  = 2.93 [2.37-3.63], P = 2.6 × 10 -23 ). The meta-analysis with EADB summary statistics revealed four new loci reaching GWAS significance. Functional annotations of these loci implicated endosome/lysosomal function. Finally, the AD-GRS presented a similar performance in these populations, despite the score diminished when the Native American ancestry rose., Discussion: We report the first GWAS on AD in a population from South America. It shows shared genetics modulating AD risk between the European and these admixed populations., Highlights: This is the first genome-wide association study on Alzheimer's disease (AD) in a population sample from Argentina and Chile. Trans-ethnic meta-analysis reveals four new loci involving lysosomal function in AD. This is the first independent replication for TREM2L, IGH-gene-cluster, and ADAM17 loci. A genetic risk score (GRS) developed in Europeans performed well in this population. The higher the Native American ancestry the lower the GRS values., (© 2023 The Authors. Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association.)