伦理学教学与道德选择

在历史上,伦理学以什么途径和渠道对人们的道德产生过影响?在当今条件下,它还可能继续产生影响吗? 提出这个问题的本身就为在伦理学与其研究对象的相互作用上区分“现存的东西”和“应有的东西”的必要性奠定了基础。由于这种区分具有具体历史的制约性,所以它不仅取决于伦理或道德方面的可能和需要,而且更加取决于理论的完备,即不是简单地追随着精神生活,而是要“超前反映”人类的精神生活,从而使伦理道德理论成了“宁静日常生活的干涉者”,积极参与着对道德生活进程的指导。     

重在实践

至大的真主在《古兰经》中说:“你们是诵经的人,你们怎么可以命人行善,而忘却自身呢?难道你们真不明白吗?”(2∶44)从这段详明的经文,我们应当知道:有些人,他们常以诚信者自诩。他们常以信仰和善功命令别人,而他们自身却放任自流,     

公正:变化中的美德观念

有两种互不相容的公正观念:一是通过说明怎样根据各人所挣之物赋予其权利和赋予哪些权利来解释公正概念;一是通过说明根据各人的基本需要及其满足方法而确立的平等权利来解释公正概念。 分析道德哲学家R·诺齐克和J·罗尔斯对上述基于合法所得权利和基本需要这两种主张在理论上作出表述: 罗尔斯认为,在规定任何社会制度下对利益的公正分配时都将依据下述两条原则和一条规     

Postural requirements and progression velocity in young walkers

This article describes developmental changes in gait velocity and relates these changes to gait parameters that index postural stability (step width and lateral acceleration) and two components of velocity (cadence and step length). Five children were observed longitudinally over a 2-year period after onset of independent walking. Their range of speed increased threefold in the first 6 months of independent walking and then remained constant. In contrast, step width decreased approximately twofold. Whereas in adults, cadence and step length contribute approximately equally to speed, when infants first begin to walk independently, increase in velocity is due mostly to increased step length. After 5 months of independent walking, the pattern reverses, and increase in velocity is due primarily to increased cadence. The pattern remains constant over the next 18 months. From a developmental point of view, the data lead us to interpret early walking (the first 5 months) as a process of integration of postural constraints into the dynamic necessities of gait movement. A second phase, beginning after 4 to 5 months of independent walking, is considered to be a tuning phase characterized by a more precise adjustment of the gait parameters.     

Effects of Pointing Rate and Availability of Visual Feedback on Visual and Proprioceptive Components of Prism Adaptation

While looking through laterally displacing prisms, subjects pointed 60 times straight ahead of their nose at a rate of one complete movement every 2 or 3 s, with visual feedback available early in the pointing movement or delayed until the end of the movement. Sagittal pointing was paced such that movement speed covaried with pointing rate. Aftereffect measures (obtained after every 10 pointing trials) showed that when the limb became visible early in a pointing movement, proprioceptive adaptation was greater than visual, but when visual feedback was delayed until the end of the movement, the reverse was true. This effect occurred only with the 3-s pointing rate, however. With the 2-s pointing rate, adaptation was predominately proprioceptive in nature, regardless of feedback availability. Independent of the availability of visual feedback, visual adaptation developed more quickly with 3-s pointing, whereas proprioceptive adaptation developed more rapidly with 2-s pointing. These results are discussed in terms of a model of perceptual-motor organization in which the direction of coordinative (guidance) linkage between eye-head (visual) and hand-head (proprioceptive) systems (and consequently the locus of discordance registration and adaptive recalibration) is determined jointly by pointing rate and feedback availability. An additional effect of pointing rate is to determine the rate of discordant inputs. Maximal adaptive recalibration occurs when the input (pointing) rate matches the time constant of the adaptive encoder in the guided system.     

Discriminability between alternatives in a switching-key concurrent schedule

Six pigeons were trained to discriminate between two intensities of white light in a symbolic matching-to-sample procedure. These stimuli were then used to signal which schedule was available on the main key in a switching-key concurrent schedule. The concurrent schedules led to a symbolic matching-to-sample phase in which the subject identified the concurrent schedule to which it last responded before a reinforcer could be obtained. The concurrent schedules were varied across conditions. Discriminability, measured during the symbolic matching-to-sample performance, was high throughout and did not differ across the two procedures. Performance in the concurrent schedules was like that typically obtained using these schedules. Delays were then arranged between completion of the concurrent schedules and presentations of the symbolic matching-to-sample phase. A series of conditions with an intervening delay of 10 s showed that both concurrent-schedule performance and symbolic matching-to-sample performance were affected by the delay in a similar way; that is, choice responding was closer to indifference.     

甘岑的自然演绎演算

迄今为止,我们所主要讨论的逻辑演算,即用公理方法处理的狭谓词演算,标志着把数学方法运用于逻辑获得了显著的成功。这种演算的形式上的简易是令人称道的,从纯粹数学的观点看,它可以同公理化的射影几何及抽象群论这一类数学观念的完满体现的学科相媲美。此外,作为应用于研究演绎系     

《主体·客体·认识》中译本序言

B·A·列克托尔斯基是苏联著名的马克思主义哲学家,现任苏联《哲学问题》杂志主编、科学院哲学所认识论研究室主任。《主体·客体·认识》一书是他的一本有相当高学术价值、享有国际盛名的力作,已被翻译为七种文字。本文系他为该书中译本写的前言,其中谈了对认识论发展的重要看法。该书中译本由贾泽林等人译,将由中国人民大学出版社出版。     

新的多重智力观

人们可以轻易地测出高度,但智力却没有这样简单.这主要是因为人们具有多重智力,而不是简单的一种智力.总的来讲,我已区分了七种形式的智力.在现代社会得到高度评价的两种智力是语言和逻辑数理(Logical-mathematic)能力.当人们认为某人聪明时,往往是指这两种能力.因为个体有了语言和逻辑数理能力,就能在那些所谓测量智力的测验上获得好分数.