Ecology and acculturation among native peoples of central Brazil.

Simple exposure to Western goods may not be a sufficient explanation of why isolated village communities increase their participation in external market economies. The degree of market participation by four native villages in central Brazil is related to the difficulty of making a living from slash-and-burn subsistence agriculture as measured by the ratio of labor input to food output.

The measurement of affective sensitivity: the development of an instrument.

The Affective Sensitivity Scale, Form D is a media-based, multiple-choice test of one facet of human empathy. It is machine scorable, has norms based on over three thousand people and is likely to be useful in research on medical education.