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While existing research has well-recognized educational plan as an important predictor of students' educational achievement, the alignment of educational plan and achievement should not be taken for granted. As plan-achievement misalignment is liable to negative psychological and social consequences, this study aims to examine the extent to which parents vis-à-vis teachers could guide students into plan-achievement alignment. Specifically, this study is set within two comparable cases of Taiwan and Hong Kong to explore whether the relative importance of parents' and teachers' guidance would differ according to the institutional contexts of education systems. Methodologically, society-specific (multinomial) logistic regression analyses are conducted based on the data of the "Taiwan Education Panel Survey" and the "Hong Kong Survey on High School Students' Aspirations for Higher Education and Employment." In Taiwan, we find students not only received more guidance from parents, but parents' guidance was also more effective in helping them reach plan-achievement alignment. By contrast, teachers are found to have played a key role in these regards in Hong Kong. The findings provide support to our propositions that the relative importance of parents' and teachers' guidance may vary by the opportunity structures of post-secondary education and the level of school-based parental involvement.

Coral reefs have extremely high ecological value in tropical and subtropical waters worldwide. However, they have been subjected to the most extensive and prolonged damage in recent decades. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous hazardous pollutants and are highly resistant to degradation in marine environments. Among these compounds, benzo(a)pyrene (BaP) has exerted pressure on corals due to water discharges, oil spills and coastal tourism. In the present study, the physiological response, oxidative stress and stress-related genetic expressions of two Acropora spp. (Acropora formosa and Acropora nasuta) were analysed. These two coral species were exposed to 10 and 40 μg·L -1 BaP for 24 hand 72 h, respectively. The results show that (1) BaP affects the health of the zooxanthellae in coral symbiosis after BaP exposure for 72 h due to a significant decline in chlorophyll a concentrations in Acropora spp. during this period. (2) An exposure of 10 μg·L -1 BaP for 24 h induced serious oxidative damage to Acropora spp., with a significant decline and increase in superoxide dismutase (SOD) activities in A. formosa and A. nasuta. (3) The P-gp gene is more sensitive in A. formosa, while the Hsp70 gene is more sensitive in A. nasuta. (4) A. formosa showed a lower ability to resist organic pollutants in coral reefs. Overall, further ecotoxicological studies are needed to investigate the impact of chemical pollutants on corals and to compare their different response mechanisms., (Copyright © 2019 Elsevier B.V. All rights reserved.)