What's new:

  • I'm officially a Data Scientist! (November, 2015)
  • I am now a certified Big Data Professional through Arcitura. (August, 2015)
  • I recently began a job in the St. Louis area as a Predictive Information Analyst for an insurance company. (April, 2014)
  • Our paper The Origin of the Spectral Intensities of Cosmic-Ray Positrons has been accepted for publication in ApJ. (April, 2014)
  • I passed the Actuarial Exam P/1. I'll have my full score in two months. (March, 2014)
  • I have begun taking Machine Learning on Coursera. It's pretty awesome. (March, 2014)
  • I'm taking Data Analysis and Statistical Inference on Coursera. Class starts Monday, Feb. 17 if you're interested. (February, 2014)
  • My paper Properties of Galactic Dark Matter:  Constraints from Astronomical Observations has been published and is now available online. (November, 2013)
  • My paper Properties of Galactic Dark Matter:  Constraints from Astronomical Observations has been accepted for publication in The Astrophysical Journal. (October, 2013)
  • A project of mine was featured on BoingBoing! (October, 2013)
  • My Galactic dark matter paper submitted to ApJ has been revised. The new version can be found here. There is additional analysis and improved clarity, but the main results remain the same. (October, 2013)
  • An electronic copy of my dissertation can be found here. (October, 2013)
  • I have successfully defended my PhD! (August 27, 2013)
  • I have another new publication up on arXiv, and this one is submitted to Astrophysical Journal. It's about the properties of Galactic dark matter from astronomical constraints. (June, 2013)
  • I have a new publication up on arXiv on cosmic ray propagation models that has been submitted to PRL. (May, 2013)
  • My alumni profile at Carthage College is now up. (January, 2013)
  • My first webpage from 1997 (7th grade) Summer AD'Ventures Science Camp through the Illinois Math and Science Academy is still up and running. (December, 2012)

Recent blog posts:

Current projects:

Friends and family doing cool work:

  • My wife Lizz Callahan is sharing her knowledge of all things rhetorical.
  • Horror and dark fantasy author and old friend Chandler Kaiden is writing up a storm.
  • My son Devin has been documenting his research on all things scientific and historical.

Currently Reading

Recently Read