The role of self-determination in informal and formal science learning contexts

Learning Environments Research - The goal of this research was to explore cognitive, self-determined learning and autonomous motivational effects in the context of a mobile science exhibition...     

Being a resource for both mother and child: fathers' experiences following a complicated birth

The aim of this study was to describe fathers' experiences of being present on a postnatal ward and during the first days at home following a complicated birth. Fifteen fathers were interviewed, and content analysis was used for the analysis. The theme illustrated that fathers were a resource for both mother and child through practical and emotional engagement. The categories describe how the father empowers the mother and illustrates adapting to new family roles. Following complicated birth, fathers should be invited to stay around-the-clock on postnatal wards because it gives them the opportunity to place their resources at the disposal of mother and child. In antenatal courses, fathers should be prepared for their empowering role after a complicated birth.     

测量学术贡献的关键词分析法探析

语言作为逻辑思维和推理工具,其基本要素是语词。重要语词映射成概念,核心概念建构知识,而知识演进促成学术发展。本文以学术文献中的     

Felt or False Smiles? Volitional Regulation of Emotional Expression in 4‐, 6‐, and 8‐Year‐Old Children

The development of volitional emotion regulation of expression was examined with a modified disappointing gift paradigm and strategy for coding children's expressions. Forty‐nine boys and 49 girls aged 4, 6, and 8 were motivated to volitionally deceive an observer by false smiling, regardless of whether they received an attractive, unattractive, or no gift. Ten naïve observers watched children's videotaped behavior in random order and judged the quality of emotion and type of gift. This impression analysis indicated that children's competence to volitionally regulate their expressions increased with age. In addition, this ability was positively associated with children's emotion understanding of how to differentiate between emotion and expression. Unexpectedly, girls did not display a superior volitional regulation of expression than boys.     

Ageing of brazilwood dye in wool – a chromatographic and spectrometric study

Brazilwood was used in this work to dye wool mordanted with different amounts of copper(II) sulfate, alum and iron(II) sulfate. Two different dyeing methods were used: premordanting (MD) and simultaneous mordanting (M+D) procedures. In order to evaluate the influence of the mordant ion in the brazilein chromophore photodegradation, samples were subjected to artificial light ageing. Color measurements were made and, for the first time, LC-DAD-ESI-MS was used for chromophore analysis of the dyed fibers before and after light exposure. Mordant ion quantification was done after fiber acid digestion, by inductively coupled plasma-optical emission spectroscopy (ICP-OES) and flame atomic absorption spectroscopy (FAAS). Mordant metal ion, mordant bath concentration and dyeing procedure were found to have strong influence in the wool fiber hues. Color variation was more pronounced in the alum dyed samples. Overall, mordant quantification showed that the amount of metal ions found in the fibers is very small when compared to the original concentrations of the dyeing bath, being Cu the ion with greater affinity for the wool fibers. MD dyeing procedure yielded fibers with larger amounts of mordant metal ions and higher chromophore peak areas. Higher amounts of brazilein were extracted from wool mordanted with copper(II) sulfate. Finally, chromatographic analysis of the brazilwood dyed samples before and after light exposure resulted in the detection of Type C compound as an outcome of the photodegradation process.     

Teachers’ implicit theories of intelligence: influences from different disciplines and scientific theories

A sample of 226 Swedish high school teachers from various knowledge domains completed self-report measures of intelligence regarding implicit theories and scientific theories of intelligence. A mixed ANOVA showed that teachers from language, social science and practical disciplines had a significant preference for an incremental theory of intelligence compared to an entity theory of intelligence whilst the teachers in mathematics did not. One of the conclusions was that entity theories of intelligence may be more pronounced among teachers in mathematics. Second there is a significant relation between naïve beliefs in intelligence as fixed and inborn, entity theories, and the scientific g-factor theory. Last, it was the oldest and most experienced and youngest and least experienced teachers who preferred an entity theory of intelligence the most.     

Understanding factors associated with teacher‐directed student use of technology in elementary classrooms: A structural equation modeling approach

Analyses presented here are secondary data analyses of the Use, Support and Effect of Instructional Technology study aimed at identifying predictors of teacher‐directed student use of technology (TDS) in elementary classrooms. Using data from a convenience sample of 1040 teachers nested within 81 schools in 21 Massachusetts' school districts, researchers developed a teacher‐level structural equation modeling for TDS depicting relationships between and among factors associated with TDS. Researchers relied on diffusion and adoption theories as well as prior empirical evidence to specify the hypothetical model. Evidence presented here suggests that the strongest predictors of TDS are as follows: (1) teachers' experience with technology, (2) belief that technology is beneficial to meet instructional goals, (3) perceived importance of technology for teaching and that (4) experiencing obstacles with the integration of technology appears to be one deterrent to teachers using technology in the classroom. The most important finding reported here is that two of the most important factors in increasing TDS are teachers' beliefs about the benefits of technology and perceived importance of technology for teaching.