Urban landscaping conversions can alter decomposition processes and soil respiration, making it difficult to forecast regional CO2 emissions. Here we explore rates of initial mass loss and net nitrogen (N) mineralization in natural and four common urban land covers (waterwise, waterwise with mulch, shrub, and lawn) from sites across seven colleges in southern California. We found that rates of decomposition and net N mineralization were faster for high-N leaf substrates, and natural habitats exhibited slower rates of decomposition and mineralization than managed urban landcovers, especially lawns and areas with added mulch. These results were consistent across college campuses, suggesting that our findings are robust and can predict decomposition rates across southern California. While mechanisms driving differences in decomposition rates among habitats in the cool-wet spring were difficult to identify, elevated decomposition in urban habitats highlights that conversion of natural areas to urban landscapes enhances greenhouse gas emissions. While perceived as sustainable, elevated decomposition rates in areas with added mulch mean that while these transformations may reduce water inputs, they increase soil carbon (C) flux. Mimicking natural landscapes by reducing water and nutrient (mulch) inputs and planting drought-tolerant native vegetation with recalcitrant litter can slow decomposition and reduce regional C emissions.
In a recent study, Bianchi (2014) showed that macroeconomic conditions (i.e. average unemployment rate) during the years of emerging adulthood (ages 18-25) are inversely related to adult narcissism. Fletcher (2015) called into question the robustness of the results and Grijalva et al. (2015) presented meta-analytic support for real gender differences in narcissism. Here we report combined results from five studies (N = 11,394) showing that the average unemployment rate during emerging adulthood indeed tempers later narcissism – but only in men.
This study examines how parents' and children's explanatory talk and exploratory behaviors support children's causal reasoning at a museum in San Jose, CA in 2017. One-hundred-nine parent-child dyads (3-6 years; 56 girls, 53 boys; 32 White, 9 Latino/Hispanic, 17 Asian-American, 17 South Asian, 1 Pacific Islander, 26 mixed ethnicity, 7 unreported) played at an air flow exhibit with a nonobvious causal mechanism. Children's causal reasoning was probed afterward. The timing of parents' explanatory talk and exploratory behaviors was related to children's systematic exploration during play. Children's exploratory behavior, and parents' goal setting during play, were related to children's subsequent causal reasoning. These findings support the hypothesis that children's exploration is related to both internal learning processes and external social scaffolding.
Purpose Despite the fact that research on creativity and cognition have garnered the attention of researchers and practitioners for decades, there is a lack of valid, reliable, and accessible instruments for enhancing and measuring these critical skills. Leveraging research from The LEGO Foundation and in collaboration with BrainPOP and the Learning Economy Foundation, this paper introduces an assessment framework for holistic skills and reports evidence from the 2022 validation study. Design/methodology/approach The complexities associated with both competencies such as multidimensionality, authenticity, and domain specificity pose a major issue for its measurement and credentialing. This paper provides evidence-based insights on promising ways to measure and provide actionable insights on holistic skills. Findings Preliminary evidence supports the assessment framework for holistic skills. Research limitations/implications Future directions for further development of the assessment are discussed. Practical implications The framework should also be of help for practitioners looking for research-based guiding principles for the design of learning-through-play activities aimed to help develop holistic skills across a wide range of digital, physical, and hybrid modalities. Social implications The framework provides new instruments and insights for evaluating the social and educational impact of learning-through-play programs and initiatives. Originality/value The learning progressions and formative assessment for holistic skills development are novel and clearly needed in research and practice of learning-through-play.
Children’s museums attract millions of families every year, providing opportunities for learning through play and for developing children’s creativity. Many of these museums actively collaborate with local communities, educators, and researchers to help improve the experiences of visitors. What makes such informal learning environments unique is how the facilitators, and the exhibits themselves, are mostly designed to provide children with an experience of guided discovery. Children actively engage with the exhibits by tinkering with materials and testing hypotheses about what will happen next, and develop creativity by interpreting novel experiences and solving discovered problems. Some museums go so far as to develop curricula and programs that explicitly promote the creativity of children. Collaborations with academic researchers influence approaches to encouraging creativity, while also evaluating the impacts of museum exhibits and programs.
In a recent study, Bianchi (2014) showed that macroeconomic conditions (i.e. average unemployment rate) during the years of emerging adulthood (ages 18-25) are inversely related to adult narcissism. Fletcher (2015) called into question the robustness of the results and Grijalva et al. (2015) presented meta-analytic support for real gender differences in narcissism. Here we report combined results from five studies (N = 11,394) showing that the average unemployment rate during emerging adulthood indeed tempers later narcissism – but only in men.
