A5004258318- Astro and Planetary Science
- Education, Achievement, and Giftedness
- Planetary Science and Exploration
- Motivation and Self-Concept in Sports
- Cognitive Abilities and Testing
- Early Childhood Education and Development
- Child and Adolescent Psychosocial and Emotional Development
- Ion-surface interactions and analysis
- Education Methods and Technologies
- Teacher Professional Development and Motivation
- Impact of Technology on Adolescents
- Geological and Geochemical Analysis
- Isotope Analysis in Ecology
- Child Development and Digital Technology
- Parental Involvement in Education
- Educational and Psychological Assessments
- Behavioral Health and Interventions
- Diamond and Carbon-based Materials Research
- Nuclear Physics and Applications
- High-pressure geophysics and materials
- Geology and Paleoclimatology Research
- Sociology and Education Studies
- Space Exploration and Technology
- Silicon Effects in Agriculture
- Psychoanalysis and Social Critique
Southwest University
2015-2024
Philipps University of Marburg
2015-2024
Smithsonian Institution
2007-2024
General Administration of Sport of China
2019
University of Chicago
2016-2018
University of Auckland
2017
University of Manchester
2008-2012
National Museum of Natural History
2007-2011
University of Münster
1998-2009
Schwetzingen Technical Institute & Graduate Court Registrars' College
2008
We measured the elemental compositions of material from 23 particles in aerogel and residue seven craters aluminum foil that was collected during passage Stardust spacecraft through coma comet 81P/Wild 2. These are chemically heterogeneous at largest size scale analyzed (â¼180 ng). The mean composition this Wild 2 is consistent with CI meteorite composition, which thought to represent bulk solar system, for elements Mg, Si, Mn, Fe, Ni 35%, Ca Ti 60%. Cu, Zn, Ga appear enriched material,...
Significance We document organic matter encapsulated in rock clasts from a oceanic serpentinite mud volcano above the Izu–Bonin–Mariana subduction zone (Pacific Ocean). Although we cannot pinpoint exact origin of matter, chemical analysis constituents resembles molecular signatures that could be produced by microbial life deep within or below volcano. Considering known temperature limit for life, 122 °C, and forearc geotherm where such volcanoes are located, estimate exist as ∼10,000 m...
Prior studies have found an inconclusive relationship between social networking site (SNS) usage and users’ subjective well-being. Passive SNS may be detrimental to well-being, because it cannot provide support evoke envy jealousy. Conversely, is also possible that lower well-being predict higher passive usage, which can used as a means relieve stress. To examine this reciprocal process, two-wave study among sample of Chinese college students was conducted ( N = 350 at Time 1, 265 2). Data...
Background: Problematic smartphone usage among adolescents and young adults is a growing concern.Objective: The purpose of this study was to investigate whether depressive symptoms mediate the relationship between academic stress problematic usage, and, more importantly, problem-focused coping moderates association symptoms.Method: sample comprised 316 middle school students (46.8% males, M = 13.74 years old, SD 0.87) in Southwest China. results showed that mediated usage.Results: This...
The presence of boron in the structure diamond is rare nature, and even when present, reported values are ≤0.5 ppm. This study used various spectroscopic methods time-of-fight (ToF-) SIMS to characterize analyze for natural type IIb blue diamonds, including well-known Hope Blue Heart on one high-pressure, high-temperature annealed stone. Infrared spectroscopy measurements reveal uncompensated as large 1.72 ± 0.15 ppm, which significantly higher than previously maximum 0.5 ToF-SIMS analyses...
Studies investigating the life satisfaction of intellectually gifted and non-gifted students are scarce often suffer from methodological shortcomings. We examined adolescents using a rather unselected sample N = 655 German high-school (n 75 gifted), adequate comparison groups students, clear definition giftedness (general intelligence g > 2 SD above mean). There was no difference in between (d < |0.1|). Girls reported somewhat lower scores than boys 0.24). However, this result not specific...
The importance of self-related constructs in predicting academic achievement has been increasingly emphasized recent decades. Typically, bivariate associations variables with achievements have reported. Research quantifying the combined predictive power more than two self-variables scarce. Moreover, except for self-concept, these almost always measured across domains, i.e., without considering specifics individual school subjects. current study aimed to statistically predict (operationalized...
Abstract Background and aims Internet addiction has been linked to ADHD-related symptoms. However, the direction of relationship its potential for reciprocal relations is not well understood. This study examined between three components ADHD addiction, as moderating effects gender on these relations. Methods Using a longitudinal design, we collected data 865 Chinese adolescents across waves ( M age = 13.78, SD 1.56 in wave 1), with time interval 6 months. Results Cross-lagged analyses...
Serpentinite mud volcanoes from the Mariana forearc comprise B-rich mantle wedge peridotites serpentinized by slab fluids. The major component of these rocks are serpentine group minerals [Mg3Si2O5(OH)4], showing highly variable textural and geochemical features. Micro-Raman spectroscopy reveals that well-crystallized lizardite chrysotile. In situ SIMS spot analyses element mapping via ToF-SIMS show B is evenly distributed across grains, suggesting serpentine, both chrysotile in different...
This study examines the frequency of pet possession and its covariation with family variables (family size, housing conditions, parents' employment, maternal support) among elementary school children. Additionally, children's caring activities their emotional relationship to pets were investigated. Subjects 426 fourth graders (213 boys, 213 girls). Results indicate that are very frequently present in families, dog as most common preferred animal. Parents' employment support do not covariate...
Abstract— Cometary matter in aerogel samples from the Stardust mission was investigated with TOF‐SIMS for its elemental and organic composition. While single grains >1 μm are highly variable their chemical composition, nanometer‐scale material found wall of one track has within a factor 1.22 bulk CI chondritic element ratios relative to Fe Na, Mg, A1, Ti, Cr, Mn, Co. Compared CI, depletion Ca by four an enrichment Ni two observed. These results seem confirm recent reports CI‐like...
This study was aimed to figure out whether perceived stress mediates the relationship between discrimination and psychological distress among Chinese migrant children social support engagement coping moderate detrimental effects of on distress. The sample comprised 813 middle-school students (482 children, 331 non-migrant children) from three schools in Southwest China. results indicate that children’s are associated with distress, does not mediate Both inversely related compensate...