Acquisition of inductive biconditional reasoning skills: Training of simultaneous and sequential processing

One hundred forty-four 10th-grade students received training on one of three processing methods: coding-mapping (simultaneous), coding only, or decision tree (sequential). Then they learned a biconditional rule under one of eight transfer test conditions based on a 2 (paradigm: rule vs complete learning) × 2 (memory aids: 0 vs 4) × 2 (focus instance: presence vs absence) design. Although the coding-mapping students processed concept instances in much the same way as the coding-only students, they acquired the target rule more frequently, and they processed instances more quickly and more consistently than the decision-tree students. The observed ordinality of the responses of four truth-table classes was found to be more consistent with the simultaneity than with the sequentiality hypothesis. As expected, training interacted with paradigm and also with memory aids and focus instance. The induced simultaneous processing strategy apparently works optimally under rule learning, while the sequential strategy is difficult to induce and/or not optimal for rule-learning operations.     

运动与细胞因子的研究进展

运动期间血浆细胞因子主要来源于收缩的骨骼肌和脂肪组织，尤其是IL-6。运动时糖和脂肪的代谢与IL-6有关，IL-6也可能参与肌纤维溶解和肌肉萎缩。IL-15可能介导力量训练所致的肌肉壮大。免疫细胞不是运动中血浆细胞因子的主要来源。     

图书馆期刊计算机管理的实现

从图书馆期刊管理的现状出发 ,讨论了计算机应用的相关问题和关键技术 ,介绍了用 SEAS软件实现期刊管理的实现方法和注意问题     

Interpretation of the separate WPPSI tests for boys and girls at three age levels

The aim was to aid the clinician's interpretation of the six Verbal and five Performance tests constituting the WPPSI. Analyses were conducted for separate groups of boys and girls at ages $\text{4?4}\text{1}\text{2}$, $\text{5?5}\text{1}\text{2}$, and $\text{6?6}\text{1}\text{2}$ to determine the amount of specificity (reliable unique variance) for each test. Test specificity provides empirical evidence either for or against interpreting the specific traits or abilities that are presumed to be measured by a particular test. Most WPPSI tests were found to have enough specificity to warrant specific clinical interpretation for boys and girls across the age range. The clinical implications of the results are discussed.     

On the relevance of signal detection theory to the correction for guessing

This paper shows how alternatives to the conventional guessing correction may be derived from considerations similar to the signal detection theory of psychophysics. Methods of experimentally determining the right correction are briefly suggested.     

肌电图波形的分维表征及模拟初探

本文简单介绍了时间序列、分形和分维的基本概念。初步讨论发现肌电图波是时间序列,可视为自仿射分形曲线,能用分维表征。用R/S分析法计算了几个肌电图的分维,并在Weierstrass-Mandelbrot函数和分数布朗运动基础上模拟了肌电图曲线。最后讨论了分维在体育科学中的应用。     

高等学校须重视学生的情报素质教育

由高校的素质教育谈到了当前大学生情报素质问题,并通过我国发生的某些情况,说明了情报素质的重要。认为高校应加强大学生的情报素质教育。     

未来的信息系统结构模型——B/S计算模式

本文概括地介绍了信息系统结构的发展现状和未来发展趋势。对中央计算模式、Client/Server计算模式和Browser/Server计算模式这三种结构的特点分别进行了讨论 ,在此基础上进一步探讨Browser/Server计算模式的结构、Web服务器的构建、Web服务器与数据库的连接方式。最后给出了这些连接方法的评估 ,以作为基于Web的信息系统设计和开发的参考     

用VisualC++6.0开发网络通信程序

叙述了网络通信的基本原理以及基本的开发方法 ,重点介绍了用VC + + 6 .0开发网络通信的基本方法以及CSocket类的使用 ,同时具体描述了一个网络通信程序的开发过程     

Rapid processing of base and derived forms of words and grades 4, 5 and 6 children's spelling

This paper emphasizes the productive aspect of morphological processingand the effect on spelling proficiency in 226 grades 4, 5 and 6 children. Two convergent studies using reaction time measures aimed at exploring ten- to twelve-year old spellers' sensitivity to, and knowledge of, derivational morphology with lexical items varying in orthographic and phonological transparency and opacity. There is some evidence, from the accurate and rapid vocal production of base forms or derived forms of source words in sentential contexts, that the depth of segmentation to base morphology and the converse process of derived morphology of words, plays a role in spelling performance of these children. There are complex orthographic, phonological and semantic factors affecting morphological processing.