Five papers on reverse mathematics and Ramsey-theoretic principles - C. T. Chong, Theodore A. Slaman, and Yue Yang, The metamathematics of Stable Ramsey's Theorem for Pairs. Journal of the American Mathematical Society, vol. 27 (2014), no. 3, pp. 863-892. - Manuel Lerman, Reed Solomon, and Henry Towsner, Separating principles below Ramsey's Theorem for Pairs. Journal of Mathematical Logic, vol. 13 (2013), no. 2, 1350007, 44 pp. - Jiayi Liu, $RT_2^^2$ does not imply WKL 0. Journal of Symbolic Logic, vol. 77 (2012), no. 2, pp. 609-620. - Lu Liu, Cone avoiding closed sets. Transactions of the American Mathematical Society, vol. 367 (2015), no. 3, pp. 1609-1630. - Wei Wang, Some logically weak Ramseyan theorems. Advances in Mathematics, vol. 261 (2014), pp. 1-25.