大鼠脑反复缺血致不可逆性学习记忆障碍的研究

大鼠全脑反复缺血后产生不可逆性学习记忆障碍的研究,采用４血管阻断的方法,脑反复缺血再灌流,然后长期饲养。作水迷宫试验和跳台试验,结果显示缺血后出现了显著的、不可逆的学习记忆障碍。同时用放射免疫方法测定了额叶、颞叶、纹状体、丘脑、海马、Ｍｅｙｎｅｒｔ氏核中胆碱递质和ＡＶＰ,发现ＡＣｈ、ＣｈＡＴ、ＡＶＰ含量显著下降。下降的时间、幅度一致,变化呈正相关。ＡＣｈ、ＣｈＡＴ、ＡＶＰ是与学习、记忆密切相关的神经递质和神经肽。因而推断脑缺血后出现不可逆性学习记忆障碍与多脑区内ＡＣｈ、ＣｈＡＴ、ＡＶＰ含量显著下降有关。这对探讨临床上血管性痴呆发病机理进而开发有效的防治药物有重要意义。     

深圳与北京中学生价值观特点比较研究

采用中国人价值取向问卷对507名深圳和北京的中学生进行测查。结果表明:深圳归侨生与非归侨生在“法律规范取向”上差异显著。深圳男女中学生在“金钱权力取向”、“爱情取向”和“家庭取向”上两者存在显著差异。在“正义公理取向”维度上,深圳中学生和北京中学生差异显著,在“从众取向”、“家庭取向”和“公共利益取向”上,两者差异非常显著。     

Factor structure of the new environmental paradigm scale: evidence from an urban sample in southern California

This study examined the factor structure of the New Environmental Paradigm Scale using responses from 261 urban subjects from southern California. The analysis yielded findings inconsistent with many previous studies of the original scale. This study supported an 8-item two-factor model of the scale rather than the one-factor and three-factor models proposed earlier. A subsequent validation study provides evidence for this short form's validity, as the two factors were predictive of commitment to preservation of nature.     

Judging a Book by its Cover: The Influence of Implicit Self‐Theories on Brand User Perceptions

Do people judge others based on the brands they use? Prior research finds evidence to this effect, yet we argue this phenomenon is far from universal. Drawing on research on implicit self‐theories, we find that only entity (but not incremental) theorists are prone to judging people based on their brand use (Studies 1 and 2). We show that entity theorists infer that people use brands to signal who they are to others, thereby forming perceptions of these people based on the personality of the brands they use, but incremental theorists are reluctant to make inferences about brand users’ signaling motives (Studies 3, 4, and 5). When tendencies to make signaling inferences are reduced, entity theorists no longer judge people based on their brand use (Studies 3 and 4). Furthermore, even incremental theorists judge people based on their brand use when given the information that their brand use is not driven by situational forces, but is potentially driven by a signaling motivation (Study 5).     

The Way Evaluation Tastes: Tasting as an Embodied Cue of Evaluation

The current theory and research on embodiment have indicated that the basic bodily experiences, which may be more fundamental and important than previously suggested, can influence human cognitive processes. Drawing upon this perspective, the present study examined the hypothesis that the psychological experience of evaluation is grounded in the physical experience of tasting. In three experiments, we found that a tasting cue facilitated evaluation-related conceptual processing in a lexical decision task (Experiment 1), and induced a desire to evaluate toward novel stimuli (Experiment 2). Furthermore, sweet tastes were associated with more positive and secure evaluations than bitter tastes (Experiment 3). These findings provide converging evidence supporting the prediction that tasting as an embodied cue of evaluation.     

Consumers’ Response to an Advertisement Using Brand Popularity in a Foreign Market

Abstract : This research examined how domestic consumers respond to an advertisement using brand popularity in a foreign market. By using structural equation modeling, it shows that the consumers’ response can change as a function of three characteristics of brand popularity in a foreign market: (a) expertise of foreign consumers, (b) similarity between domestic consumers and foreign consumers, and (c) animosity to a foreign country. Meanwhile, the similarity effect is found to be stronger for high‐preference heterogeneity than low‐preference heterogeneity. This research documents the importance of understanding the underlying mechanism to determine the effects of brand popularity in a foreign market on brand attitude and purchase intention.     

《孙子兵法》的思维特征

《孙子兵法》的思维方式代表着我国先秦时期思维发展的正确方向,对构建现代科学思维方式具有重要的借鉴意义,学者们对此多有论述。本文从综合的角度,对《孙子兵法》七个方面的思维特征进行整理与探讨,以求教于方家。     

多层螺旋CT在不同肝硬化分级评估中的应用

利用多层螺旋CT对不同肝功能分级的52例乙型肝炎后肝硬化患者、50例酒精性肝硬化患者及25例正常对照组受试者进行肝脏体积在体测量,并进行kappa检验和方差分析,结果显示多层螺旋CT在体肝脏体积测量具有很好的一致性及可重复性（P〈0．01）;乙型肝炎后肝硬化与酒精性肝硬化患者肝脏体积的总体变化趋势相同,都随着病情的进展逐渐缩小,Child-Pugh分级B级之间的乙肝后肝硬化与酒精性肝硬化组患者的肝脏体积差异达到统计学上显著性水平。