新托马斯主义批判

天主教教会及其意识形态特征对新托马斯主义哲学进行考察,必须先简略分析天主教教会在当今世界上的地位及其意识形态的一些特征。十九世纪后半叶,天主教教会从封建制度和君主制政体的卫士,变为反对工人阶级运动、反对社会主义、维护资产阶级的一种武器。天主教教会是教权主义运动中的一支极其强     

马克思异化理论的概念系统(下)

乙、异化和物化这里我们集中论述两个问题:第一,马克思著作中的物化概念;第二,卢卡奇著作中的物化概念。马克思除了使用Entfremdung和Vergegen-standllchung,即“异化”和“客观化”以外,还用了Verdinglichung“物化”(reification)这个词(来自拉丁语“res”——“物”)。这个词无论在马克思的理论中,还是在近年来有关异化问题的论战中都起着重要作用。而且有些人已开始认为“物化”这个概念要     

马克思主义与科技革命——兼论经典马克思主义与现代马克思主义

现在,有一个很难忽视或很难否认的事实,就是在社会进步和科技进步之间,在社会政治思想即马克思主义思想和科技思想即科技革命之间存在着一种辩证的相互关系。这种关系有两层意思:科技革命通过非常不同、非常复杂的途径,影响着经济、社会政治和文化的发展,归根到底影响着社会生活的一切方面,影响着社会思想;而反过来,社会政治思想也推动着科学技术的发展,对科技活动的开展也发生着冲击,看不到这种推动是不行的。当代科学技术的巨大变化和日益深刻、日益迅速的发展,给所有人提出了这样一个迫切的任务;更     

辩证逻辑

黑格尔对形式逻辑和辩证逻辑的看法辩证逻辑是德国哲学家黑格尔在十九世纪初引入的哲学术语。这个术语是他用来称呼自己关于一切“自然和精神事物”发展的规律的唯心主义学说的,又同被他作了歪曲解释的形式逻辑直接地对立起来。他正确地指出了他那个时代哲学理论的弊病之一,就是思维的规律和形式被形而上学地看作为某种一成不变的东西。其实,受工业生产的进步所制约的自然科学的发展已经表明,形而上学和它的     

Positive contrast, negative induction, and inhibitory stimulus control in the rat

In Experiment I, 24 rats were trained on a multiple variable-interval variable-interval schedule with a doorlight and white noise serving as component cues. Two groups were then shifted to a multiple extinction variable-interval schedule, and a third group was maintained on the multiple variable-interval variable-interval schedule. The multiple extinction variable-interval condition produced positive contrast when either the light or noise signalled extinction, and both of these cues acquired inhibitory stimulus control as measured by a combined cue test. In Experiment II, the multiple variable-interval variable-interval condition was shifted to multiple extinction variable-interval for one group, to multiple variable-time variable-interval for a second group, and was unchanged for the third group. The two experimental conditions produced identical patterns of response-rate reduction in the altered component, but the multiple extinction variable-interval condition produced positive contrast, whereas the multiple variable-time variable-interval condition did not. Subsequent combined cue and resistance to reinforcement tests revealed that the cue signalling extinction acquired stronger inhibitory stimulus control than the cue signalling variable time.     

A three-component analysis of the modality effect in single-trial free recall

Johann-Wolfgang-Goethe Unversität, Frankfurt am Main, West-Germany In single-trial free recall a superiority of acoustical over visual presentation has been observed in the recency part of the serial position curve. The rehearsal-buffer model by Atkinson and Shiffrin (1968) was modified to distinguish between three different explanations that are discussed in the literature. The application of the model allowed some of the parameters to vary across modes of presentation while other parameters were held constant. A model assuming either a precategorical acoustical storage or additional processing for visually presented items gives a better account of the results than does a model derived from a two-store hypothesis.     

Clock control of human performance on avoidance and fixed-interval schedules

The avoidance and fixed-interval performances of human subjects were studied in two experiments. Addition of time-correlated stimuli (added clock) improved behavioral efficiency, since response rates decreased without decreases in reinforcement rates. Response-dependent display of the clock maintained a second, observing response and reductions in clock duration weakened such observing behavior. Generally, the reinforcing properties of the clock were more apparent with the avoidance than with the fixed-interval schedule, a finding attributed to temporal cues already provided by delivery of the fixed-interval reinforcers. Reduced rates of the main response when the clock was dependent on an observing response were more than offset by rates of the observing response in the majority of subjects. Thus, the results do not support an interpretation of the reinforcing properties of added clocks simply in terms of work reduction.     

指南是怎样制定的?

最近在制定临床实践指南的方法上发生了一些变化,这深刻地影响着医学保健的质量和成本,远远超过前后10年所有新出现的诊疗手段的作用.人们预期,制定指南方法的改变影响着指南的内容,进而对未来几十年中成千上万的临床决策发挥指导作用.目前,制定指南的方法所经历的改变代表了医学赖以存在的知识基础发生了变化.