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白色海绵痣之脱落细胞分析
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作者 王小平 刘蜀凡 +2 位作者 沈子华 冯德云 梁英锐 《口腔医学纵横》 CSCD 1997年第1期17-19,共3页
从一患病家系中选8位白色海绵痣患者,取有颊粘膜典型病损处脱落细胞作光镜与透射电镜分析。涂片显示堆积于粘膜表面之白色损害系大量不全角化细胞,形态不规则,胞浆突较多、胞浆内含嗜伊红致密团块,与组织切片中主要特征相似。电镜下表... 从一患病家系中选8位白色海绵痣患者,取有颊粘膜典型病损处脱落细胞作光镜与透射电镜分析。涂片显示堆积于粘膜表面之白色损害系大量不全角化细胞,形态不规则,胞浆突较多、胞浆内含嗜伊红致密团块,与组织切片中主要特征相似。电镜下表现以细胞内张力细丝成分显著增多为主,膜被颗粒及细胞间镶嵌结构明显增多。提示患处上皮角化活跃但正常脱屑过程受阻。 展开更多
关键词 白色海绵痣 脱落细胞 张力细丝 膜被颗粒
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Developing Theoretical Relativistic Framework for Research in Open and Flexible Learning: A New Trend in Educational Research 被引量:1
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作者 Yousaf Khan 《Journal of Mathematics and System Science》 2015年第9期345-363,共19页
The purpose of research study was to develop a theoretical relativistic framework for research in open and flexible learning environment because it is a new dimension in the field of education. Developing a theoretica... The purpose of research study was to develop a theoretical relativistic framework for research in open and flexible learning environment because it is a new dimension in the field of education. Developing a theoretical relativistic framework for any research study is first and prime step in walking on the track to reach the distinction set by the researcher. Open and flexible learning is a new trend in education, enriched with ICT-use as a basic demand of the 21st century generation in all parts of the globe. So, it requires a theoretical framework for its initiation, implementation, development and evaluation which is relatively developed and advanced from the existing framework. In any research study the literature review is carried out in order to develop, build or construct a theoretical framework. The researcher of the study has observed while attending the international conference on ODL (AAOU, 2013) that most of the studies require theoretical underpinning for ICT-use in education. The researcher assume that being a new trend in education to use ICT for teaching learning purpose; it requires conceptual clarity and theoretical background of the user and researcher, because, without theory the practice is wastage of money, time and energy and it becomes ineffective and requires relatively new conceptual development. So, the problem stated by the researcher for the study was: Developing theoretical relativistic framework for research in open and flexible learning: A new trend in educational research. The objective of the study was integrating the interrelated concepts to build a pnemonological network for identifying the constructs in ICT-rich open and flexible learning environment. The study was significant because it provided theoretical background for conducting research in ICT-use for teaching and learning through open and flexible systems; whether blended or online learning and training. The methodology used by the researcher was qualitative and interpretive because there were reviewing of literature and meta-analysis for building the framework. The data were analyzed and interpreted by the researcher for the findings and drawing conclusions. On the basis of conclusions the researcher has made suggestions and recommendations for conducting research in open and flexible learning environment by using this theoretical relativistic framework. The framework was named as Virtual Learning Environment Framework (VLEF). 展开更多
关键词 Open and flexible learning Research in ICT Research in open and flexible learning Pnemonological network in odland ICT.
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