Women are underrepresented in the research world, especially in STEM research — science, technology, engineering and math — and in medical research. Three ASU researchers are leading efforts to remedy the imbalance. Among them is Erin Chiou, a Fulton Schools assistant professor of human systems engineering.  Chiou is the editor of the new book “Advancing Diversity, Inclusion, and Social Justice Through Human Systems Engineering,” in which she examines, for instance, how the lack of women participants in product testing and design has led to a world ill-fitted to the needs of women that, in turn, intensifies broader gender disparities that already exist in society.