pastures play an important role in protecting environment and ecosystems. unfortunately more than 40 percent of pasturess in the world have been destroyed and 20 percent of destroyed pastures are located in developing countries. application of solar energy could significantly contribute to preserving the pastures. the main purpose of this study was to examine the role of solar energy in protect...

environmental crisis is one of the most important global problems. dealing with this crisis as a collective effort requires formation of environmentalism attitudes among people. what is considerable in this field is to identify the factors affecting people’s attitudes towards environmentalism especially women. since, based on two main perspectives of ecofeminism; i.e. women's relationship ...

Recent theory and research suggest that certain situational factors can harm women’s math test performance. The three studies presented here indicate that female role models can buffer women’s math test performance from the debilitating effects of these situational factors. In Study 1, women’s math test performance was protected when a competent female experimenter (i.e., a female role model) a...

We carry out a large monetary stakes insurance experiment with very small probabilities of losses and ambiguous as well as exact probabilities. Many individuals do not want to pay anything for insurance whether the probabilities are given exactly or are ambiguous. Many others, however, are willing to pay surprisingly large amounts. With ambiguity, the percentage of those paying nothing is small...

Since their discovery 15 years ago, the role of gammadelta T cells has remained somewhat elusive. Responses of gammadelta T cells have been found in numerous infectious and non-infectious diseases. New evidence points to gammadelta T cells' functioning in the airways to maintain normal airway responsiveness or tone. In the lung, distinct subsets of gammadelta T cell subsets seem to have specifi...