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The peer relationships of young children with mild developmental (cognitive) delays recruited at 4-6 years of age were examined in a longitudinal study across a 2-year period. Results revealed only modest increases in children's peer interactions, a high degree of intraindividual stability, and the existence of a poorly organized and conflict-prone pattern of peer interactions. Child cognitive and language levels as well as family stress and support were associated with children's peer interactions. A subgroup was identified of initially low interactors who were at especially high risk for future peer interaction problems. These findings further underscore the importance of designing and implementing early intervention programs in the area of peer relationships for children with mild developmental delays. 相似文献
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Wang JP Raman H Zhang GP Mendham N Zhou MX 《Journal of Zhejiang University. Science. B》2006,7(10):769-787
Aluminium (Al) toxicity is one of the major limiting factors for barley production on acid soils. It inhibits root cell division and elongation, thus reducing water and nutrient uptake, consequently resulting in poor plant growth and yield. Plants tolerate Al either through external resistance mechanisms, by which Al is excluded from plant tissues or internal tolerance mechanisms, conferring the ability of plants to tolerate Al ion in the plant symplasm where Al that has permeated the plas- malemma is sequestered or converted into an innocuous form. Barley is considered to be most sensitive to Al toxicity among cereal species. Al tolerance in barley has been assessed by several methods, such as nutrient solution culture, soil bioassay and field screening. Genetic and molecular mapping research has shown that Al tolerance in barley is controlled by a single locus which is located on chromosome 4H. Molecular markers linked with Al tolerance loci have been identified and validated in a range of diverse populations. This paper reviews the (1) screening methods for evaluating Al tolerance, (2) genetics and (3) mechanisms underlying Al tolerance in barley. 相似文献
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Claire Wyatt-Smith Susan Bridges Maree Hedemann Mary Neville 《The Australian Educational Researcher》2008,35(3):1-20
This paper presents (i) a purpose-built conceptual model for professional learning and (ii) a leadership framework designed
to support a large-scale project involving diverse sites across the state of Queensland, Australia. The project had as its
focus teacher-capacity building and ways to improve literacy and numeracy outcomes for students at educational disadvantage.
It involved 15 intersectoral clusters and brought together Middle School teachers, principals, curriculum leaders and management
personnel from Education Queensland, the Association of Independent Schools Inc., and the Catholic Education Commission. In
the paper we discuss how the project worked at the interface of research and practice. Further, we discuss how professional
learning was facilitated by a multi-layered approach that acknowledged the importance of research-based learning, curriculum
and pedagogic leadership by principals, and strong opportunities for teacher agency through cross-cluster and intersectoral
collaboration. In conclusion, we invite readers to consider how the approach represents a radical new way to think about what
could count as valued professional learning interactions. 相似文献
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Ann Neville Miller Evangeline Nalugya Charles Gabolya Sarah Lagot Richard Mulwanya Joseph Kiva 《Sex education》2016,16(6):707-720
Although mounting evidence in Western nations indicates that entertainment media influence young people’s sexual socialisation, virtually no research has addressed the topic in sub-Saharan Africa. The present study employed 14 focus groups of Ugandan high school students to identify media through which they were exposed to sexual content, how they interpreted and evaluated that content, and how they compared its influence with that of parents, schools and religious institutions. Participants most often mentioned TV, followed by print media and Internet as sources of sexual material. Media were said to present discrepant messages regarding the timing of sexual debut, with international programming urging early sexual debut and local programming described as urging young people to delay sex. Young people spoke of turning to ssengas and kojjas for sexual advice, and a number of boys suggested pornography could also be educational. Both local and international programming was interpreted as conveying views of men as sex driven and women as submissive in sex and relationships. Participants expressed the belief that sexual media content had a negative impact on young people. Most nevertheless assessed these messages as more influential than other sources of sexual socialisation. 相似文献
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ABSTRACTIn this article we consider the rights of children and young people with special educational needs and disabilities in England, introduced under the Children and Families Act 2014, within the context of the wider reforms made by the Act. Drawing primarily on key informant interviews conducted as part of an ESRC project on Autonomy, Rights and Children with Special Needs: A New Paradigm? (ES/P002641/1), and making reference to the international framework of children’s and disabled persons’ rights, we present an analysis of the (mostly professional) viewpoints gathered and what they tell us about the progress towards the realisation of children and young people’s autonomy and agency in this field. 相似文献
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