This paper explores the causes behind the severe underrepresentation of women in engineering. Based on national data on undergraduate engineering programs, this study presents cross-sectional estimates of male and female student retention. Contrary to widespread beliefs, the study found that overall and in most disciplines there is no differential attrition by gender. Instead, results suggest that gender disparities in engineering are largely driven by inadequate enrollment (not inadequate retention) of women. The paper concludes that outreachwithin institutions of higher education, across institutions (into two-year colleges, middle and high schools), and into K-12 curricular reform-are needed to address what is, at its very core, a recruitment problem.
We report the development of a new method of instantaneously measuring three-dimensional velocity profiles and structure in air and oxygen. No seeding of particles, molecules, or atomic species is required. The method combines Raman excitation and laser-induced electronic fluorescence to generate a time-gated image of the moving oxygen molecules.
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