Sunday, April 10, 2016

The water watchdog

DTLR supports the views of Prof. Marc Edwards, expressed in interviews with the Chronicle of Higher Education (with Steve Kolowich, here) and Science Magazine's Working Life (with Rachel Bernstein, here), regarding the mis-aligned incentives for academic scientists, and other topics.  He is one of the experts worked to "uncover and address the elevated lead levels in drinking water in Flint, Michigan" (as Bernstein wrote).


Saturday, March 5, 2016

Gravitational waves and colliding black holes

DTLR has been dormant for nearly a half-year.  However a significant discovery has been reported recently that is worthy of note.  The LIGO (Laser Interferometry Gravitational-Wave Observatory) detected the emission of gravitational radiation from a source event that appears to be the collision of two black holes.  The event marks the dawn of the age of gravitational wave astrophysics.  We are again grateful to be witnesses to the making of physics history.  Congratulations to the LIGO and VIRGO collaborations.

Reference:


B.P. Abbott, et al., 2016:  Observation of gravitational waves from a binary black hole merger.  Physical Review Letters, 116:  061102.


Wednesday, September 2, 2015

The role of institutions in promoting reproducible research

Nature published a superb commentary yesterday by Glenn Begley, Alistair Buchan, and Ulrich Dirnagl, advocating reforms among institutions to help reduce irreproducible research.  I have little to add except unabashed praise.  DTLR endorses the views expressed in the commentary.




Sunday, August 30, 2015

The AMS statement on weather analysis and forecasting

Following up on my last post on meteorology, I want to draw readers' attention to the American Meteorological Society's information statement on weather analysis and forecasting, which appeared in the Society's Bulletin recently, and can be found online here.  I found it to be very informative.

Tuesday, August 18, 2015

Dr. Marshall Shepherd's weather pet peeves

Check out Dr. Marshall Shepherd's blog post, "10 Common Myths and Misconceptions about the Science of Weather" at Forbes.com.  He is a distinguished professor at the University of Georgia and a former president of the American Meteorological Society.



Sunday, August 9, 2015

Self-correction and an open research culture in science

Back in the June 26 issue of Science, there was a pair of commentaries by Alberts et al. (2015) and Nosek et al. (2015) entitled, respectively, "Self-correction in science at work" and "Promoting an open research culture."  Both articles are reactions to concerns about non-reproducible research.  The first one focuses on incentives, investigations of misconduct, and ethics education.  The second article deals with transparency, and introduces a set of guidelines called TOP (Transparency and Openness Promotion).  It discusses various standards for transparency, with different levels.  While I do not think this pair of articles captures the whole scope of the irreproducibility crisis, they do provide much food for thought on how we should address it.  Thus I recommend both articles to DTLR readers.

One passage in Nosek, et al. (2015), discussing the preregistration of studies and analysis plans, caught my eye.  "Preregistration of analysis plans certify the distinction between confirmatory and exploratory research, or what is also called hypothesis testing versus hypothesis generating research.  Making transparent the distinction between confirmatory and exploratory methods can enhance reproducibility."  I fully endorse this perspective.  I have met scientists who fail to understand the point made here so succinctly, and it really deserves emphasis.


References


B. Alberts, et al., 2015:  Self-correction in science at work.   Science, 348:  1420-1422.

B. A. Nosek, et al., 2015:  Promoting an open research culture.  Science, 348:  1422-1425.

Saturday, June 13, 2015

Some nice physics in the popular press

I was delighted to see a couple of physics items in the popular press.  Last week the New York Times had this opinion piece by physicists Adam Frank and Marcelo Gleiser, "A crisis at the edge of physics."  There isn't much new here for DTLR readers, as last year we've covered similar ground in our discussion of Jim Baggott's book, Farewell to Reality.  Helen Quinn's term "scientific metaphysics" (see my previous post) might be a good one to use to describe what Baggott less charitably calls "fairy tale physics".  Nonetheless I take a dim view of efforts to de-emphasize the importance of empirical testing.  Such efforts smack of wishful thinking, in my view.

Then Forbes had a piece by physicist Chad Orzel defending his choice to work in atomic and molecular physics.  Titled "Particle and astro aren't the only kinds of physics", it is absolutely delightful, except for the swipe at biomedical researchers near the end!  Of course, condensed matter physics is the largest sub-field of physics, but it does seem true that particle physics, astrophysics, and cosmology are the branches of physics that get the most traction in the popular media.  Physics needs more evangelists like Orzel to call attention to the many and varied other subfields of physics.