中国传统诚信观的演变及其特征

中国传统诚信观在春秋以前萌芽,形成于春秋至战国时期,秦汉时期被规范化,宋明时期具有强烈的哲理化倾向,到明清时期走向了实用化的道路.中国传统诚信观具有强烈的自律倾向、浓郁的情感色彩和单向的道德义务的基本特点.     

“就是给病人做了点东西”——访著名骨科专家卢世璧院士

翻开卢世璧院士的简历,一连串的首创性成果格外引人注目:在国内首先开展了人工关节的系列研究及临床应用;率先开展火器性周围神经伤的自体神经移植;首创形状记忆合金棒治疗脊柱侧弯;第一个研制成功国产关节连续被动活动器(CPM机);首先采用微波热疗治疗骨肿瘤;首先利用引导性组织再生概念进行长骨再生实验研究;在国内最先建立冷冻干燥骨库……。     

The ameliorating effect of oroxylin A on scopolamine-induced memory impairment in mice

Oroxylin A is a flavonoid and was originally isolated from the root of Scutellaria baicalensis Georgi., one of the most important medicinal herbs in traditional Chinese medicine. The aim of this study was to investigate the ameliorating effects of oroxylin A on memory impairment using the passive avoidance test, the Y-maze test, and the Morris water maze test in mice. Drug-induced amnesia was induced by administering scopolamine (1 mg/kg, i.p.) or diazepam (1 mg/kg, i.p.). Oroxylin A (5 mg/kg) significantly reversed cognitive impairments in mice by passive avoidance and the Y-maze testing (P<.05). Oroxylin A also improved escape latencies in training trials and increased swimming times and distances within the target zone of the Morris water maze (P<.05). Moreover, the ameliorating effects of oroxylin A were antagonized by both muscimol and diazepam (0.25 mg/kg, i.p., respectively), which are GABA(A) receptor agonists. Furthermore, oroxylin A (100 microM) was found to inhibit GABA-induced inward Cl(-) current in a single cortical neuron. These results suggest that oroxylin A may be useful for the treatment of cognitive impairments induced by cholinergic dysfunction via the GABAergic nervous system.     

工作记忆中的注意焦点转换

在工作记忆中的选择性注意及注意焦点机制的基础上,从3个方面回顾了对工作记忆中注意焦点转换的研究：（1）工作记忆中的注意焦点转换的概念及其基本研究方法;（2）影响注意焦点转换代价的因素,包括提取、复述、加工、更新和记忆集大小等;（3）注意焦点转换与工作记忆各功能成分之间的关系,包括注意焦点转换与工作记忆执行功能的关系,注意焦点转换反映的存储、加工和执行功能之间的相互关系,注意焦点转换与工作记忆中资源分配的关系。最后,该文展望了未来的研究方向     

父母-儿童共同活动中的互动与儿童的数学学习

本研究运用结构性观察方法对两组4岁儿童与父母在四种活动中的互动进行了分析与比较。一组儿童为书面数符号测查高分者,二组儿童为书面数符号测查低分者。85对父母一儿童对子参加了4个各有15分钟的共同活动,阅读、数学题、纸和积木,并完成一个微型问卷。结果表明,在这些活动中包含了多种数学知识学习和多种以父母为主导的互动策略;两组对子之间在数学事件频次上无差异,但一组父母更多地运用了一些积极策略,二组父母更多地运用了一些消极策略;二组中有更多儿童对互动表现出消极回应和注意力问题。两个组的父母在家中与儿童一起进行诸如阅读和做数学题的共同活动的频次与质量上表现出差异。     

大学生人格、社会支持与主观幸福感的关系

采用问卷调查法探讨了大学生的主观幸福感与人格、社会支持的关系。研究发现：（1）大学生的主观幸福感无性别差异;（2）不同人格类型的大学生的主观幸福感水平有显著的差异：多血质者主观幸福感最高,抑郁质者最低;(3)四种人格类型大学生的主观幸福感均有随社会支持水平的增加而增加的趋势;（4）神经质、外向性和家庭外源性社会支持对主观幸福感有较强的预测力;但外向性与主观幸福感的关系将在一定程度上以家庭外源性社会支持为中介。     

文本阅读中预期推理激活与编码的语境条件研究

本研究通过三个实验考察了语义联系和因果制约对文本阅读中预期推理激活和编码的贡献。结果表明,预期语境与预期事件间的语义联系不能使预期推理在文本阅读过程中得到激活和编码,语境与预期事件间的强因果关系是文本阅读过程中预期推理激活与编码的必要条件;提示阅读过程中的预期是因果预期而非联想预期。结果为建构主义推理观提供了实验依据。     

Young girls' developmental skills in underarm throwing

This paper concerns underarm throwing by girls 7 to 12 years of age. Each movement component by trained and untrained girls in underarm throwing or windmill softball pitching was examined. Movement characteristics of ball release, arm motion, trunk activity, and stepping were analyzed to capture experience- and age-related differences in underarm throwing. A total of 48 young girls participated: 25 untrained (age 9.7 yr.), 14 trained/league (age 10.9 yr.), and 9 trained/formal (10.4 yr.). Performance was videotaped individually and evaluated by three observers. Analyses suggest that, while age did not affect performance, the type of training experience influenced the girls' performance on each of the four movement components. The wrist and trunk were identified as showing the most significant progression with experience. The findings have important implications about changes during acquisition of underarm throwing skills.