视觉：意识的窗户

当你乍一看到Salvador Dali的绘画(左)中间的图象时，你看到了什么?大多数人的第一印象都是一个男人的脸——两眼凝望着天空，浓密的髭须下嘴唇噘起。当你定睛再看时，这幅图象又变成了一幅更为复杂的画面。男人的鼻子和白色髭须原来是一个坐着的女人的帽子和披肩。他眼里的微光成了坐落在黑暗山坡上的两座村庄里窗户的闪光——或是天花板的反光。     

物质和光的二象性

在量子力学中，物体既可以表现出粒子的特性，也可以表现出波的特性，研究工作现在突出显示了这样一个事实，即这类互补特性要比人们曾经认识到的更为深刻。     

智能的出现

语言、预见能力，音乐才能以及智能的其它种种标志通过一种增进快速运动的基本官能而互相联系起来。     

赚钱新方式

读了有关股票、金融和因特网的商业杂志，你将会有两个很深的感触。其一就是每日交易非常之危险，因特网把投资经营变成了一个大输大赢的赌场。其二，每个人都是靠因特网的泡沫股票发家致富，所以泡沫很快就会破灭(但也可能不会)。然而，存在一个更加微妙、也更加有趣的问题：因特网是民主化金融吗?     

美国的少数民族及其学士学位获得率

美国青年的学士学位获得率从1900年的2％，上升到1950年的19％(当时，许许多多的退伍军人借助于G．I．法案涌进了大学校园)，后又上升到1999年的32％。第二次世界大战之后，伴随着高等教育的发展，美国的高校日益强调择优录取新生，而不是按学费支付能力来录取新生。当时，优点主要以中学的评分以及包括学习     

Studying the effects of early child care experiences on the development of children of color in the United States: toward a more inclusive research agenda

Evidence is presented of the different cultural and ecological contexts affecting early child care for families of color. It is argued that improvements on previous research require a fundamental shift in how race, ethnicity, and culture as psychological variables are examined. Furthermore, to avoid the pitfalls and failures of previous research, new research must incorporate expanded models of child care and development in childhood. The integrative model of development for children of color proposed by Garcia Coll et al. (1996) is presented as a basis for developing more specific ecological models relevant to addressing child care issues in ethnic minority families. Finally, priority areas for future research are recommended to stimulate and enable child care researchers to adopt a more inclusive view of child care and its effects.     

Automatic separation system for marine meiobenthos based on laser-induced fluorescence technology

An automatic system for marine meiobenthos separation was developed by using laser-induced fluorescence technology. Rose Bengal was used as organism dye and the spectrums of Rose Bengal were measured. Laser-induced fluoresce ncesystem was established to detect marine meiobenthos in sediments. Data obtained from experiments were analyzed by using a mathematical model. The results showed that laser-induced fluorescence technology worked well in the system. The system could select the meiobenthos efficiently and precisely.