Usefulness of serum CA 15.3 and histopathological prognostic indices in breast cancer

Prognostic factors influence the modality and course of therapy in breast cancer. These include both histopathological and biochemical variables. This study was aimed to find out if any correlation exists between the biochemical tumor marker-serum CA 15.3, and the lymph node staging of Nottingham’s Prognostic Index (NPI). It was observed that serum CA 15.3 showed a statistically significant correlation with lymph node staging of NPI. Therefore it is concluded that CA 15.3 can be utilized as a useful prognostic marker, particularly in cases where histopathological variables such as tumor size and grade have been altered by pre-operative chemotherapy.     

Research Experience as a Component of Science and Mathematics Teacher Preparation

Journal of Science Teacher Education -     

Promotion,Persuasion and Class-taste: Marketing (in) the UK post-compulsory sector

Post-16 providers in the UK now offer a wide range of courses and training in order to respond to the expanded, diversified and 'non-traditional' post-16 market. School leavers are invited to 'choose' from a range of courses and pathways which are being provided in a variety of post-16 educational institutions. These providing institutions are in competition with one another and 'need' the students as their funds are contingent upon successful recruitment (and retention). As a result, many post-16 providers are turning to aspects of marketing in order to publicise their courses and maintain or increase their share of the market. This paper examines two major tactics in the promotion and marketing of post-16 provision-brochures and open days-in relation to issues such as access, targeting, response to 'difference' in the client group/market segment and 'professionalism' of approach. The paper argues that market tactics do semiotic 'work' as class-taste markers.     

The Me in Memory: The Role of the Self in Autobiographical Memory Development

This article tests the hypothesis that self-development plays a role in the offset of childhood amnesia; assessing the importance of both the capacity to anchor a memory to the self-concept, and the strength of the self-concept as an anchor. This research demonstrates for the first time that the volume of 3- to 6-year old's specific autobiographical memories is predicted by both the volume of their self-knowledge, and their capacity for self-source monitoring within self-referencing paradigms (N = 186). Moreover, there is a bidirectional relation between self and memory, such that autobiographical memory mediates the link between self-source monitoring and self-knowledge. These predictive relations suggest that the self-memory system is active in early childhood.     

Teaching high school science using image processing: A case study of implementation of computer technology

An in-depth case study of teachers' use of image processing (a state-of-the-art computer technology used by research scientists) in biology, earth science, and physics classes within one high school science department explored issues surrounding technology implementation. The study, conducted within a districtwide, schoolwide, and classroom context, explored four areas related to the teacher's adoption of image processing: (a) teachers' background with computers outside of instructional use, (b) teachers' attitudes toward educational technology and insights gained from their experience using computers within the science curriculum, (c) training and perceived influence of district and school administrators, and (d) teachers' classroom and computer lab practices. The following factors were deemed critical in teachers' decision to use or not use image processing with their students: (a) time to thoroughly explore and master the technology so they could use it with students to explore science concepts; (b) classroom management skills specific to technology use; (c) perception of the teaching value of the technology; (d) perception of the reasonableness of administrators' expectations for technology use; and (e) understanding of how to implement inquiry-based science teaching, independent of technology issues. These factors have implications for how to help teachers use computer technology to teach high school science. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 297–327, 1998.     

Implicit beliefs,achievement goals,and procrastination: A mediational analysis

As a maladaptive behavioural outcome, procrastination should correlate with beliefs about ability and achievement goals that are themselves relatively maladaptive. Accordingly, procrastination should be predicted by entity as opposed to incremental implicit theories (i.e., viewing attributes such as ability as relatively fixed vs. malleable, respectively) and by avoidance goal orientations as opposed to approach goal orientations. Among 397 undergraduates, entity beliefs and mastery-avoidance goals positively predicted procrastination whereas incremental beliefs and mastery-approach and performance-approach goals negatively predicted procrastination. The prediction of procrastination by entity beliefs was mediated by mastery-avoidance goals. Results are cast in terms of self-regulatory models of procrastination.     

A participatory approach to the identification of measures of number sense in children prior to school entry

The research reported in this paper used a modified Delphi procedure in an attempt to establish a consensus on tasks proposed to assess components of number sense identified as essential for early mathematics success by a broad range of academics with expertise in the area of early mathematics. Tasks included as measures of these components were based on assessment tasks developed by early mathematics researchers. Eighteen questionnaires were returned by academics from Australia, the UK, New Zealand, The Netherlands and the USA, all with published work in the areas of early mathematics and/or number sense. Both the proposed components and tasks in the questionnaires were limited to the number domain. The study revealed considerable agreement with a number of the proposed tasks and thus provided a way forward for the development of an early number sense assessment to be trialled with young children prior to their first year of formal schooling.     

一个标准能适合所有的项目吗:开放教育的选择

基于支持全英开放教育资源项目(英国开放教育资源项目,简称UKOER项目)的经验,本文将探讨该项目开展过程中所涌现出的各种不同的开放教育资源描述方法,及其对资源共享、工作流程计划、资源聚集观的影响.由于UKOUER项目包括个人层面的项目、学科层面的项目和院校层面的项目,而这三种类型的项目又有各自不同的特点,显然难以用一种技术或者描述性的解决方案来适合所有的项目.因此,目前这些项目只提供有限的描述性信息,包括项目标签、作者、题目、日期、链接地址、文件格式、文件大小、权限,以及一些附加信息,包括语言、学科分类、关键词、标签、评论和描述.所有项目可以自由选择编码、存储和分享上述信息的方法.本文通过大量的例证介绍了项目的描述方法,其中还包括工作流程和所作出的尝试.我们将考虑所选择的工具(资源库、Web2.0应用、虚拟学习环境)与标准选择的关系,以及本地需求和更广泛社区需求之间的关系.我们会考虑这些选择对资源传播和发现的影响,例如,资源描述对大量开放教育资源的发现服务的影响.