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511.
Luis Paulo Rodrigues Linda Saraiva Carl Gabbard 《Research quarterly for exercise and sport》2013,84(2):140-148
A contemporary view of early childhood motor development considers environmental influences as critical factors in optimal growth and behavior, with the home being the primary agent. However, there has been minimal research examining the relationship between motor development and the home. The present study addresses this gap with the goal of creating an innovative parental self-report instrument to assess the quality and quantity of factors (affordances and events) in the home that are conducive to enhancing motor development in children ages 18–42 months. Following initial face validity determination, expert opinion feedback and selective pilot testing, construct validity was examined using 321 Portuguese families. Factor analysis techniques were used to: (a) compare competing factorial models according to previous theoretical assumptions, and (b) analyze the fit of the preferred model. Of the five plausible models tested, the five-factor solution provided the best fit to the data. Reliability was established through the scale reliability coefficient with a value of .85. The findings of this study suggest that the Affordances in the Home Environment for Motor Development Self-Report is a valid and reliable instrument to assess how well home environments afford movement and potentially promote motor development. 相似文献
512.
Aristides I. Ferreira Rosa I. Rodrigues Paula da Costa Ferreira 《International Journal for Educational and Vocational Guidance》2016,16(1):91-111
In this study, we present the development of a vocational interest scale for university students studying psychology. Three dimensions were extracted through principal component analysis, namely, organizational, educational, and clinical psychology. A second study with confirmatory factor analysis replicated the same three factors obtained in the first study. We found significant positive correlations between clinical and educational psychology with the social dimension of Holland’s model. The enterprising dimension appeared to be significantly and positively correlated with the organizational psychology component. Implications and suggestions for future research are discussed. 相似文献
513.
Maedeh Roushan Parminder Kaur Alena Karpusenko Preston J. Countryman Carlos P. Ortiz Shuang Fang Lim Hong Wang Robert Riehn 《Biomicrofluidics》2014,8(3)
We present an analytic technique for probing protein-catalyzed transient DNA loops that is based on nanofluidic channels. In these nanochannels, DNA is forced in a linear configuration
that makes loops appear as folds whose size can easily be quantified. Using this technique, we study
the interaction between T4 DNA ligase and DNA. We find that T4 DNA ligase binding changes the physical characteristics of the DNA
polymer, in particular
persistence length and effective width. We find that the rate of DNA fold unrolling is significantly reduced
when T4 DNA ligase and ATP
are applied to bare DNA.
Together with evidence of T4 DNA ligase bridging two different segments of DNA based on AFM imaging, we thus conclude that ligase
can transiently stabilize folded
DNA configurations by coordinating genetically distant DNA stretches. 相似文献
514.
515.
Herrera-Cubides Jhon Francined Gaona-Garca Paulo Alonso Montenegro-Marn Carlos Enrique Snchez-Alonso Salvador 《Education and Information Technologies》2022,27(2):1811-1839
Education and Information Technologies - Nowadays, information and communication technologies (ICTs) and virtual training have increased the use of educational resources. This growth use has... 相似文献