Does early child negative emotionality moderate the association between maternal stimulation and academic readiness and achievement?     

Ophélie A. Collet  Massimiliano Orri  Cédric Galéra  Laura Pryor  Michel Boivin  Richard Tremblay  Sylvana Côté 《Child development》2024,95(3):948-961

We investigated whether child temperament (negative emotionality, 5 months) moderated the association between maternal stimulation (5 months–2½ years) and academic readiness and achievement (vocabulary, mathematics, and reading). We applied structural equation modeling to the data from the Quebec Longitudinal Study of Child Development (N = 1121–1448; mostly Whites; 47% girls). Compared to children with low negative emotionality, those with high negative emotionality had higher levels of academic readiness (6 years) and mathematics achievement (7 years) when exposed to high levels of maternal stimulation (β = 3.17, p < .01 and β = 2.91, p < .01, respectively). The results support the differential susceptibility model whereby highly emotionally negative children were more susceptible to the influences of low and high levels of maternal stimulation in academic readiness and mathematics achievement's developments.  相似文献   

Cognitive and Neural Development of Individuated Self-Representation in Children     

Rebecca D. Ray  Amy L. Shelton  Nick Garber Hollon  Bethany D. Michel  Carl B. Frankel  James J. Gross  John D. E. Gabrieli 《Child development》2009,80(4):1232-1242

Processing the self-relevance of information facilitates recall. Similarly, processing close-other-related information facilitates recall to a lesser degree than processing self-relevant information. This memory advantage may be viewed as an index of the degree to which the representation of self is differentiated from representations of close others. To test developmental hypotheses concerning the self, this study examined the relation of memory for self- and mother-referentially processed information in participants age 7–13 years (Experiment 1: N  = 37; Experiment 2: N  = 14). Memory for words encoded with reference to oneself increases with age, relative to memory for words encoded with reference to one's mother. When used as an individual difference measure, the difference in self versus mother memory correlates with regions of the rostral anterior cingulate associated with affective salience.  相似文献   

Early Child Language Mediates the Relation Between Home Environment and School Readiness     

Nadine Forget-Dubois  Ginette Dionne  Jean-Pascal Lemelin  Daniel Pérusse  Richard E. Tremblay  Michel Boivin 《Child development》2009,80(3):736-749

Home environment quality is a well-known predictor of school readiness (SR), although the underlying processes are little known. This study tested two hypotheses: (a) child language mediates the association between home characteristics (socioeconomic status and exposure to reading) and SR, and (b) genetic factors partly explain the association between language and SR. Data were collected between 6 and 63 months in a large sample of twins. Results showed that home characteristics had direct effects on SR and indirect effects through child language. No genetic correlation was found between language and SR. These results suggest that home characteristics affect SR in part through their effect on early language skills, and show that this process is mainly environmental rather than genetic in nature.  相似文献   

Reading in French-speaking adults with dyslexia     

Jennifer Martin  Pascale Colé  Christel Leuwers  Séverine Casalis  Michel Zorman  Liliane Sprenger-Charolles 《Annals of dyslexia》2010,60(2):238-264

This study investigated the reading and reading-related skills of 15 French-speaking adults with dyslexia, whose performance was compared with that of chronological-age controls (CA) and reading-level controls (RL). Experiment 1 assessed the efficiency of their phonological reading-related skills (phonemic awareness, phonological short-term memory, and rapid automatic naming (RAN)) and experiment 2 assessed the efficiency of their lexical and sublexical (or phonological) reading procedures (reading aloud of pseudowords and irregular words of different lengths). Experiment 1 revealed that adults with dyslexia exhibited lower phonological reading-related skills than CAs only, and were better than RL controls on the RAN. In experiment 2, as compared with RL controls, only a deficit in the sublexical reading procedure was observed. The results of the second experiment replicated observations from English-language studies but not those of the first experiment. Several hypotheses are discussed to account for these results, including one related to the transparency of orthographic systems.  相似文献   

An Unforgettable Visit to the FAST Telescope     

Michel Blanc 《中国科学院院刊(英文版)》2018,(1)

正For several months I heard of the Five-hundredmeter Aperture Spherical radio Telescope(FAST)and dreamed of visiting it.FAST is a myth:the largest radio telescope in the world,a gigantic 500-meterwide dish,built by Chinese astronomers in a remote countryside of Guizhou Province in southern China,performing its first test operations and listening to the faint murmurs of the distant universe.And now,with Alain Cirou sitting next to me,we  相似文献   

International student flows for university education and the bilateral market integration of Australia     

Byung S. Min  Rod Falvey 《Higher Education》2018,75(5):871-889

Study at a foreign university can be an important way of developing international human capital. We investigate factors affecting international student flows for higher education and their consequences for bilateral market integration in Australia. Estimation results demonstrate that income, cost competitiveness, migration network effects and other education pathways increase the demand for tertiary education. Our results show that university study, inter alia, is an important determinant of bilateral trade between Australia and the student’s home country.  相似文献   

Japan’s educational practices for mathematically gifted students     

Michel P. Basister  Norimune Kawai 《International Journal of Inclusive Education》2018,22(11):1213-1241

This study documents the inclusive, deliberate, and unintended educational practices in Japan for mathematically gifted students. It also aims to identify various schools’ strengths and challenges in improving the mathematics education of these students. Case studies with multisite designs were undertaken in five middle schools selected using purposive sampling. Mathematics education practices – assessed in terms of assessment, mathematics instruction, support and interventions, and teachers’ collaboration – guided the data collection and analysis. The primary goal of this study was to describe current school practices and identify common strengths and challenges (including outlier practices across schools) which were valuable in generating conclusion regarding how certain practices might lead to different student and/or teacher outcomes.  相似文献   

Hydrodynamics and oxygen transfer in a novel extra-loop fluidized bed bioreactor     

陆永生  胡龙兴 《上海大学学报(英文版)》2010,14(4):266-274

In this paper, the characteristics of fluid mixing time in a novel extra-loop fluidized bed were studied. The results showed that the mixing time was shortened with the increase of fluid velocity. All the discrete numbers of the reactor were above 0.2. The serial number n was 2.5 -3.0. It was judged accordingly that the reactor fluid state was continous stirred tank reactor （CSTR） mainly. When the inspiratory capacity increased the mixing time of the reactor was shortened. Thus the air input was beneficial for the fluid mixing. During the three phases mixing process, the mixing time of the reactor could be decreased by the n increase of carrier and air loading together, but the change was not significant. The parameters affecting the reactor fluid state were fluid velocity, inspiratory capacity and carrier. KLa could be increased with the air loading increase, and at the same gas/liquid ratio when the pressure drop was high, KL~ value was increased. The amount of carrier complex influence on KLa. As the carrier loading continued to increase, its value had been dropped but the changes was not significant, and optimization condition was found at above 800 1 000 g carrier loading （pouzzolane） or 600 g PVC. Under gas/liquid ratio of 0.8% -5.2%, KLa was （0.62-1.37）×10^-2· s^-1.  相似文献   

Iron status in Winter Olympic sports     

D. B. Clement  D. R. Lloyd‐Smith  J. G. Macintyre  G. O. Matheson  R. Brock  Michel Dupont 《Journal of sports sciences》2013,31(3):261-271

Iron status was surveyed amongst 92 Winter Olympic sport athletes from Nordic and Alpine skiing, figure and speed skating and ice hockey. Haemoglobin and serum ferritin values were obtained by physicians as part of a monitoring programme, since iron deficiency would have an adverse effect on maximal performance. Four (7%) of 56 men were anaemic (Hb < 14.0 gdl^‐1) and three (8%) of 36 women had haemoglobin values less than 12.0 gdl^‐1. Nine men (16%) and 14 women (39%) had prelatent iron deficiency (serum ferritin < 30 ng ml^‐1). Ice hockey had the lowest while Nordic skiing had the highest incidence of sub‐optimal iron status. A total of 50% of Nordic women skiers had prelatent iron deficiency and 7% were anaemic. An equal percentage of women speed skaters were low in serum ferritin as well. Only one of 20 male ice hockey players was low in serum ferritin. These results suggest there would be value in instituting screening procedures for iron status in Winter Olympic Sports.  相似文献   

A distributional analysis of the effect of physical exercise on a choice reaction time task     

Karen Davranche  Michel Audiffren  André Denjean 《Journal of sports sciences》2013,31(3):323-329

Abstract

The aim of this study was to examine the facilitating effects of physical exercise on the reaction process. Eleven participants with specific expertise in decision-making sports performed a choice reaction time task during moderate sub-maximal exercise (90% of their ventilatory threshold power). Participants were tested at rest and while cycling. During exercise, the participants were faster, without being more variable. We suggest that the effect of exercise on cognitive performance was due to a major generalized improvement of the whole distribution of response time and, although the benefit effect was small, it was consistent throughout the entire range of reaction times.  相似文献