Random

  • A fascinating study found that (a) most of the male-female gap in economics graduates exists prior to college and (b) that while the grade they receive in their first class strongly predicts whether women will major in economics, it doesn't really predict whether men will at all Goldin.

Voting Theory

Meta-analyses

  • Meditation has no effect on aggression, connectedness, prejudice, or compassion. It may have an effect on empathy. In general the evidence for the pro-social benefits of meditation is weak The limited prosocial effects of meditation: A systematic review and meta-analysis.

IQ Diet

  • A 1-week experiment on 23 young men found high-protein diets improve reaction time Effect of a high protein meat diet on muscle and cognitive functions.
  • A trial is underway to examine the effects of lean red meat and exercise on cognition in older The effects of a protein enriched diet with lean red meat.

Math

Consider any computable set of positive integers X (e.g. "prime numbers", "multiples of 7", "factorial numbers", etc.). There exists a (multivariate) polynomial f(x1, x2, ...) with integer coefficients such that X = image(f). In fact, the sets constructible in either the Turing-sense or the polynomial-sense are exactly the same.

Kreplin, U., Farias, M., & Brazil, I. A. (2018). The limited prosocial effects of meditation: A systematic review and meta-analysis. Scientific reports, 8(1), 2403. Jakobsen, L. H., Kondrup, J., Zellner, M., Tetens, I., & Roth, E. (2011). Effect of a high protein meat diet on muscle and cognitive functions: a randomised controlled dietary intervention trial in healthy men. Clinical nutrition, 30(3), 303-311.s Daly, R. M., Gianoudis, J., Prosser, M., Kidgell, D., Ellis, K. A., O’Connell, S., & Nowson, C. A. (2015). The effects of a protein enriched diet with lean red meat combined with a multi-modal exercise program on muscle and cognitive health and function in older adults: study protocol for a randomised controlled trial. Trials, 16(1), 339. Goldin, C. (2015). Gender and the undergraduate economics major: Notes on the undergraduate economics major at a highly selective liberal arts college. manuscript, April, 12. https://scholar.harvard.edu/files/goldin/files/claudia_gender_paper.pdf