Describes a double pendulum apparatus and its mode of operation to produce a great variety of figures similar to Lissajous figures. The author suggests that several advanced physics topics can be studied with the aid of this instrument. Bibliography. (LC)

There are no differences between volunteers and nonvolunteers among subjects who completed questionnaires on sexual behaviors. However, as compared to nonvolunteers, volunteers who participated in further research reported more liberal sexual attitudes. Data does not support view that recent changes in sexual behavior are reflection o changes in…

Special microcomputer systems that provide data entry by voice can be an important development for the disabled. The Shadow/VET (voice entry terminal) is a computer voice entry product with reasonable cost/performance that is being marketed by Scott Instruments. (SEW)

A variety of methods for producing images and some of the tools available for image analysis are described. (BB)

A discussion of the basic design and characteristics of gas chromatography-mass spectrometry systems used in clinical chemistry. A comparison of three specific systems: the Vitek Olfax IIA, Hewlett-Packard HP5992, and Du Pont DP-102 are included. (BB)

We describe an inexpensive device for performing capillary electrophoresis (CE) separations with fluorescence detection. As a demonstration of the device's utility we have determined the mass of riboflavin in a commercially available dietary supplement. The device allows for separation of riboflavin in [asymptotically equivalent to] 100 s with a…

Recent progress in wireless and sensor technologies has lead to a new development of learning environments, called context-aware ubiquitous learning environment, which is able to sense the situation of learners and provide adaptive supports. Many researchers have been investigating the development of such new learning environments; nevertheless,…