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91.
本文对秦始皇兵马俑博物馆室内采集的长短期降尘、大气悬浮颗粒物和彩绘漆层进行了SEM-EDX研究,在大气悬浮颗粒、短期和长期降尘中,含硫颗粒的粒径分别为0.9~22.8μm、1.0~29.0μm和1.2~37.7μm,多为石膏与粘土或石英以内部混合的状态存在。降尘中的附着型絮状硫酸钙多于大气悬浮颗粒物中,显示降尘和大气中的二氧化硫发生了累进的化学反应。彩绘漆层表面的坑和裂隙附近观察到原位生长的硫酸钙晶体,显示漆层材料或降尘颗粒物与大气二氧化硫之间的酸化学反应,可能是彩绘漆层表面受侵蚀形成微小坑和裂隙的原因之一。 相似文献
92.
93.
Langlois JH 《Child development》2004,75(2):315-316
An overview of the content of the From Another Perspective collection on emotion and emotion regulation is provided. The lead article identifies fundamental issues of definition and the commentaries represent varying theoretical and methodological perspectives on emotion and emotion regulation. Together, the articles discuss the promises and pitfalls of emotion research and its potential for understanding child development. 相似文献
94.
In this column, the authors examine the effect of "reality" television shows on expectant parents' fears of childbirth. 相似文献
95.
Judith K. Bernhard Luz Bascunan Rodolfo Arenas Nury Rugeles Verga Daniel Gana 《Early Years: An International Journal of Research and Development》2004,24(1):49-62
Thirty‐eight Latin American mothers with young children tell of their perceptions of school discipline and comportment issues and talk of their children's encounters with ‘zero tolerance’ legislation, and related rules for conduct, implemented by the local school boards. The purpose of this exploratory study is to understand: (a) parents' views of and concern about disciplinary practices at school; (b) parents' ideas about the connection between home and school discipline; and (c) parents' understanding of the officially prescribed consequences of behaviour identified as non‐tolerable. Implications of the findings are discussed with regard to professional practice. 相似文献
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97.
A five-dimensional framework for authentic assessment 总被引:1,自引:2,他引:1
Judith T. M. Gulikers Theo J. Bastiaens Paul A. Kirschner 《Educational technology research and development : ETR & D》2004,52(3):67-86
Authenticity is an important element of new modes of assessment. The problem is that what authentic assessment really is,
is unspecified. In this article, we first review the literature on authenticity of assessments, along with a five-dimensional
framework for designing authentic assessments with professional practice as the starting point. Then, we present the results
of a qualitative study to determine if the framework is complete, and what the relative importance of the five dimensions
is in the perceptions of students and teachers of a vocational college for nursing. We discuss implications for the framework,
along with important issues that need to be considered when designing authentic assessments. 相似文献
98.
Peggy Doerschuk Cristian Bahrim Jennifer Daniel Joseph Kruger Judith Mann Cristopher Martin 《Journal of Science Education and Technology》2016,25(4):682-695
There is a growing demand for degreed science, technology, engineering and mathematics (STEM) professionals, but the production of degreed STEM students is not keeping pace. Problems exist at every juncture along the pipeline. Too few students choose to major in STEM disciplines. Many of those who do major in STEM drop out or change majors. Females and minorities remain underrepresented in STEM. The success rate of college students who are from low-income background or first-generation students is much lower than that of students who do not face such challenges. Some of those who successfully complete their degree need help in making the transition to the workforce after graduation. A program at Lamar University takes a multidisciplinary approach to addressing these problems. It is designed to recruit, retain and transition undergraduates to careers in STEM, focusing its efforts on five science disciplines and on these “at-risk” students. The program was supported by a 5-year grant from the National Science Foundation and is supported through August 31, 2016 by Lamar University and a grant from ExxonMobil. A formal assessment plan documents the program’s success. The program received an award from the Texas Higher Education Board for its contributions towards Closing the Gaps in Higher Education in Texas. This paper describes the program’s theoretical framework, research questions, methods, evaluation plan, and instruments. It presents an analysis of the results achieved using these methods and implications for improvements to the program resulting from lessons learned. 相似文献
99.
The authors compared evaluations by parents and teachers of the communicative abilities of deaf children. Such comparisons between parents' and professionals' assessments of the language development of children who are deaf can provide useful information on which to base ecologically valid intervention approaches. A secondary interest of the authors was to investigate the possible influences on language development of gender, the presence or absence of cochlear implantation, and communication modality (i.e., auditory-verbal or bilingual). The study included the mothers and teachers of 14 deaf children educated in auditory-verbal or bilingual programs. Two scales from a survey instrument, Profiles of the Hearing Impaired (Webster & Webster, 1995), were used. No significant differences between the teachers' and parents' evaluations were found. Gender, cochlear implantation, and communication modality were found to have no significant effect on the evaluations. 相似文献
100.
Ron Toomey Corresponding author Judith Chapman Janet Gaff Jacqueline McGilp Maureen Walsh Elizabeth Warren 《Asia-Pacific Journal of Teacher Education》2005,33(1):23-34
This paper reports the findings of a project—‘Lifelong learning and teacher education’—undertaken by the Centre for Lifelong Learning, Australian Catholic University, under the auspices of the Australian Commonwealth Department of Education, Science and Training. The study was designed to investigate the operationalization of lifelong learning in Australian teacher education. The study revealed that there is a range of existing, innovative practices regarding partnerships between schools and higher and further education that are in keeping with emerging ideas about lifelong learning. Moreover, some of these take the form of collaborative action research projects focused on improving the learning occurring in the partnership schools. This paper describes some current approaches in Australia to collaborative action research by teacher educators' and their partnership schools and shows how they contribute to lifelong learning. The approaches are then analyzed to suggest ways of advancing lifelong learning within Australian Education Faculties thus helping to make lifelong learning more of a reality for all. 相似文献