Applied mathematician, scientist, educator

I am a professor of mathematics, applied mathematics, and public health at the University of Arizona. This site describes my work as a member of an international community of researchers and educators. The menus at the top contain information about me and my professional activities. Some of the blog items below tell professional stories; others summarize information I have collected on important academic issues or point to interesting work that I have seen in the recent literature. Collectively, the pages in this site illustrate my passion for curiosity-driven research, for elegant applications, and for discovering and sharing knowledge.

Modeling Through Challenge

Reproduced from the Fall 2015 School of Mathematical Sciences newsletter (PDF) Download a PDF copy of this article Chikungunya fever in the Americas In August 2014, DARPA (the federal Defense Advanced Research Projects Agency) launched a challenge, asking the public to predict the number of cases of chikungunya fever in each of the PAHO (Pan American Health Organization) countries, many of…

On the Importance of Mathematical Models

Last month, our team won the DARPA Chikungunya Challenge. We were asked to predict the number of cases of Chikungunya observed in the Pan American Health Organization (PAHO) countries from the beginning of September 2014 till the end of February 2015. Our predictions were then scored against the actual numbers reported on the PAHO website. Points were also awarded for methodology, presentation,…

Diversity Matters

This page collects resources, articles and opinions on how to achieve diversity in STEM and why it is important. Stories, Opinions, and Testimonials Consciously Combating Unconscious Bias, by Maggie Kuo (Science, 2017) How One University Closed the Gender Gap in STEM-Faculty Hiring, by Audrey Williams June (The Chronicle of Higher Education, 2016) Diversity Benefits Scientific Progress and Society, AAAS CEO Says,…

Scientific Publishing

The articles below are view points, opinions, and research pieces related to scientific publishing. See also my Open Access page. The Leiden Manifesto for research metrics, by D. Hicks et al. (PDF, April 2015) The missing metric: quantifying the contributions of reviewers, by M. Cantor and S. Gero (PDF, April 2015) A paradox indeed, from the Editor of BioTechniques (PDF,…

Satellite Imaging

Take a look at these recent images from two satellite missions. A fluorescence map of the world from the OCO-2 (Orbiting Carbon Observatory 2) satellite, indicating regions of high photosynthesis activity. A video showing ice loss of the Greenland ice sheet, from data collected by ICESat (Ice, Cloud and Elevation Satellite).