创新医学教学模式，培养高素质医学人才

以现代教育思想和理念为指导,汕头大学医学院进行了医学教学模式的创新,通过“课程体系更新”、“教学方法创新”、“英语提升计划推进”和“考试制度强化”等有效的研究和实施,促进高素质医学创新人才培养,全面提高了学校的教学质量和综合办学能力。     

高压钠灯、高压汞灯、荧光灯和白炽灯对视敏度的影响

本项工作的目的是核查以线光谱为特征的光源在各种适应亮度(0.75尼特至125尼特)下对于视敏度的影响,结果如下: 1.在四种光源照明下,视敏度随着亮度的增加而增加,当达到一定亮度时,视敏度的增加趋向饱和。 2.以线光谱为特征的光源在同等亮度下视敏度大于以连续光谱为特征的白炽灯。 3.高压钠灯和高压汞灯在各种亮度时的视敏度差异不显著。 4.在7.5尼特—25尼特时四种光源的视敏度差异不显著。     

Practice and some methodological problems in unidimensional information transmission

Fifty circular lights differir.g in diameter from 4 to 53 cm and increasing by 1 cm were presented 135 times each to five Ss who were asked to identify each circle. Presentations were in random order. Indices of information transmission (T), response equivocation H S(R), and response uncertainty H(R) were calculated for different phases of the experiment for individual and pooled (across Ss) responses. Results have shown systematic rising of transmission and lowering of H S(R), while H(R) remained almost constant. All transmission indices calculated from pooled responses were systematically lower than comparable indices calculated from individual responses. Individual and pooled T values calculated from all responses given during the experiment were not representative for the level of identification performance at the end of the experiment. Conclusions were reached that (1) channel capacity indices should not be calculated from all individual responses given during the experiment or from pooled responses of different Ss, and (2) indices of channel capacity should be calculated only after the performance of Ss has reached a final and stable level, which means after enough repetitions of each stimulus.     

亮度对白光和色光临界融合频率的影响

本实验研究了不同亮度级的光谱色光(440,460,540,560,640,660nm)和白光的CFF。结果表明:除极高亮度(5087td)外,CFF与logI函数均呈线性关系。白光表现了最大的CFF,其图线斜率大于任何色光的图线斜率。可以见到:亮度是CFF和logI之间关系的最重要的决定因素之一。在所用的色光中,绿色不论在CFF绝对值或其图线斜率方面均高于光谱两端色光的相应数据。从而可以推断:波长对CFF和logI之间关系的效应不可忽视。光谱两端色光曲线的差别明显,而同色区内相邻色的曲线间差异则不显著,这又一次说明波长的区别对CFF的意义重大。在某些亮度水平上白光CFF绝对值低于色光,虽然在最高亮度级时其最大CFF值高于所有色光的相应数据。我们的研究结果再次提出,有必要对CIE V(λ)在某些条件下应用的适当性进行重新考虑。     

The echoes of Wundt's work in the United States, 1887–1977: A quantitative citation analysis

Summary The frequency of references to Wundt's book-length publications in experimental papers appearing in the American Journal of Psychology was determined. The most widely cited work, by far, is the Grundzüge der physiologischen Psychologie. The distinct decline of Wundt's impact on American psychology is clearly reflected in the frequencies of the citations.     

中国人眼光谱相对视亮度函数的研究——Ⅲ.不同大小视野对V(λ)的影响

本实验采用闪烁光度法。本实验的视野是7°40′和20′,受试者5人,均属色觉正常者。年龄在30至50岁之间,具有一定实验经验。实验波长从420—700nm,其间隔为20nm,实验的亮度级为30cd/m~2。 四种视野相比较,其中2°视野V(λ)曲线引自明视函数,10°视角的材料来自CIE1964年补充标准观察者?10(λ),其结果:峰值的短波一侧随着视野的增加V(λ)值显著增加,而在峰值的长波一侧则无显著变化。     

市场经济条件下股份制企业领导者心理品质的研究

本研究的假设是具有明确产权且有经营自主权的股份制企业所需要的心理品质是更适合社会主义市场经济所需要的领导者的心理品质．为了证实假设,我们从三类不同企业中各抽取３０名中上层领导者,经过四种问卷或调查表的测试,在本研究范围内发现：股份制企业的中上层领导者在时效感、决策风险意识、管理决策作风、管理责任感这四种心理品质上更具有符合市场经济所需要的企业领导者的心理品质,此结果证实了研究假设。     

浅谈肿瘤器官特异性转移机制

肿瘤转移是一个复杂的过程,具有明显的器官倾向性。随着对肿瘤转移认识的不断深化,人们发现肿瘤特异性转移与肿瘤的异质性和靶器官的作用密切相关。     

短期目标和长期目标设置对投篮成绩,努力程度和状态焦虑的影响

这篇论文调查了短期目标和长期目标对投篮成绩、努力程度和状态焦虑的影响．８７名被试被随机分配到以下一个组中：（１）短期目标组,（２）长期目标组,（３）短期和长期目标结合组,（４）“尽力做好”组。实验时间为７周。研究结果显示：（１）结合目标组、短期目标组和长期目标组的投篮成绩显著优于“尽力做好”组;（２）结合目标组的投篮成绩提高幅度最大,其次是短期目标组和长期目标组,最后是“尽力做好”组,（３）结合目标组、短期目标组和长期目标组的投篮成绩随练习次数的增加而显著提高,（４）努力程度是结合目标组和短期目标组投篮成绩提高的调节变量。