Internet use, depression, and cognitive outcomes among Chinese adolescents.

This study provides new evidence on how the growingly significant digital life shapes Chinese adolescents' cognitive and mental health outcomes based on their gender, parental education, and geographical location. Using the China Education Panel Survey, a nationally representative survey following 12-15-year-old students in 2013 and 2014, and individual fixed-effect models, we find that more time spent on the Internet is associated with higher self-reported depression scores. This negative impact on mental health is more substantial for girls, those with less-educated parents, and those living outside the city center. The link between Internet use and cognitive development is almost null. Time spent online negatively affects Chinese young adolescents' subjective well-being but has little impact on their cognitive development. The link between Internet use time and subjective well-being also depends on gender, parental education, and the geographical location of those adolescents. The heterogeneous impacts of Internet use time offer crucial new evidence to the multiple dimensions of the digital divide among adolescents in China.

Genomic selection applications can improve the environmental performance of aquatics: A case study on the heat tolerance of abalone.

Aquaculture is one of the world's fastest-growing and most traded food industries, but it is under the threat of climate-related risks represented by global warming, marine heatwave (MHW) events, ocean acidification, and deoxygenation. For the sustainable development of aquaculture, selective breeding may be a viable method to obtain aquatic economic species with greater tolerance to environmental stressors. In this study, we estimated the heritability of heat tolerance trait of Pacific abalone Haliotis discus hannai, performed genome-wide association studies (GWAS) analysis for heat tolerance to detect single nucleotide polymorphisms (SNPs) and candidate genes, and assessed the potential of genomic selection (GS) in the breeding of abalone industry. A total of 1120 individuals were phenotyped for their heat tolerance and genotyped with 64,788 quality-controlled SNPs. The heritability of heat tolerance was moderate (0.35-0.42) and the predictive accuracy estimated using BayesB (0.55 ± 0.05) was higher than that using GBLUP (0.40 ± 0.01). A total of 11 genome-wide significant SNPs and 2 suggestive SNPs were associated with heat tolerance of abalone, and 13 candidate genes were identified, including got2,znfx1,l(2)efl, and lrp5. Based on GWAS results, the prediction accuracy using the top 5K SNPs was higher than that using randomly selected SNPs and higher than that using all SNPs. These results suggest that GS is an efficient approach for improving the heat tolerance of abalone and pave the way for abalone selecting breeding programs in rapidly changing oceans.

The varying impacts of COVID-19 and its related measures in the UK: A year in review.

We examine how the earnings, time use, and subjective wellbeing of different social groups changed at different stages/waves of the pandemic in the United Kingdom (UK). We analyze longitudinal data from the latest UK Household Longitudinal Survey (UKHLS) COVID study and the earlier waves of the UKHLS to investigate within-individual changes in labor income, paid work time, housework time, childcare time, and distress level during the three lockdown periods and the easing period between them (from April 2020 to late March 2021). We find that as the pandemic developed, COVID-19 and its related lockdown measures in the UK had unequal and varying impacts on people's income, time use, and subjective well-being based on their gender, ethnicity, and educational level. In conclusion, the extent of the impacts of COVID-19 and COVID-induced measures as well as the speed at which these impacts developed, varied across social groups with different types of vulnerabilities.

Exploring daily time-use patterns: ATUS-X data extractor and online diary visualization tool.

Time-use data can often be perceived as inaccessible by non-specialists due to their unique format. This article introduces the ATUS-X diary visualization tool that aims to address the accessibility issue and expand the user base of time-use data by providing users with opportunity to quickly visualize their own subsamples of the American Time Use Survey Data Extractor (ATUS-X). Complementing the ATUS-X, the online tool provides an easy point-and-click interface, making data exploration readily accessible in a visual form. The tool can benefit a wider academic audience, policy-makers, non-academic researchers, and journalists by removing accessibility barriers to time use diaries.

Japanese adolescents' time use: The role of household income and parental education.

BACKGROUND: How children spend their day is closely linked to their social and developmental outcomes. Children's time use is associated with their parents' educational and economic capital, making time use a potential reproduction channel for socioeconomic inequalities. OBJECTIVE: We evaluate the correlation of natal-family economic resources, parents' education, and children's daily time use in Japan. METHODS: Analysing data from a 2006 Japanese time use survey, we use natal-family income, parental education, and the interaction between them to predict in-school and afterschool study time, leisure time, and sleep time for children aged 10-18. RESULTS: Children from families with higher incomes and more-educated parents spend a longer time studying after school and less time on sleep and leisure. Parental income and mothers' and fathers' education are all independently associated with children's daily patterns. CONCLUSION: Our findings suggest that available resources and parental education are important in shaping children's daily routines and, through these routines, their eventual socioeconomic outcomes. CONTRIBUTION: This is the first article to simultaneously assess the impact of income and parental education on children's study, leisure, and sleep time. It is also the first paper to analyse children's time use and their natal-family characteristics in Japan.

Country differences in the link between gender-role attitudes and marital centrality: Evidence from 24 countries.

This study investigates factors that could explain why the association between the egalitarian gender-role attitudes and the attitudes toward the importance of marriage (marital centrality) differs across societies. Using data from the International Social Survey Programme for 24 countries in 2002 and 2012 and multilevel modeling, we explore whether the Gender Revolution and the Second Demographic Transition frameworks could explain the country-level differences in the association between gender-role attitudes and marital centrality. We find that the negative association between the egalitarian gender-role attitudes and marital centrality is stronger in countries with a higher gender equality level and a higher fertility level. This work highlights the importance of considering the progress of the gender revolution and the second demographic transition to understand the relationship between gender equality and family formation.