… Hoyt’s Doctor of Nursing Practice class manage large health care systems, and to help them get a handle on the scope of the pandemic, Hoyt, PhD, RN, developed a … in a more accessible format." He also developed a video for his class to help explain his SIR model and Excel tool. Policies and recommendations around … Hoyt’s Doctor of Nursing Practice class manage large health care systems, and to help them get a handle on the scope of the pandemic, Hoyt, PhD, RN, developed a …