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06/30/17
Watch-Outs. 103. Scientific Publishing, Limits of Analysis, Gas Cylinders
Filed under: Recent Posts, Interviewing, Position Searching, Mentoring, Leadership, Mature professionals, Post-docs, Observ. Trends
Posted by: site admin @ 7:36 am

Publication is a critical focus in the scientific world.  Societies
have publication wings.  There is a large commercial publication
business that earns nearly $20Bn/year with a third being
profits.  The Guardian published a revealing article about the
publication world which this blog has offered comments.

Previous comments have been offered on peer review,
papyrocentric 
model 
and critical thinking when reading.  
This blog is on record for supporting the idea of “open access”
and questioning the viability of “rating” journals based on
citations in the internet age [it is like mindless “likes” in
social media.].
.
Been following of Deming’s articles on Applied Statistics
for decades.  He is in the middle of an important series on 
limits of detection.  I just received a water analysis report
and have received blood and urine medical reports that refer
to one or another of these.  These articles are important and
significant for all of us.  We should know and use these terms
properly.
.
One of the types of questions I ask in some interviews 
concerns gas cylinder set-up and use.  Articles in LC/GC 
often reveal solid scientific thinking to answer questions
in this area.
.
ROBERT MAXWELL AND PROFITING ON SCIENCE
SOURCE:  S. Baranyi, The Guardian June 27, 2017 
“Is the Staggeringly profitable publishing business bad for
Science”
Although the ACS continues its efforts to 
expand its
profit center, most of the members do not realize what
is going on in the publication business.  This Guardian
article goes into details what the ACS publications 
division might be emulating.  
.
Should we not ask questions to make more science, often
paid for via taxes, available free online?
.
SCIENCE AND THE LIMITS OF DETECTION
SOURCE:  S. N. Deming, Amer. Laboratory June/July 2017
P. 41.  ”Statistics in the Laboratory:  The Limit of Detection
Deming teaches in this article L(D) the limit of detection, which
he points out is different than the smallest amount of 
analyte that can be detected or the limit of quantitation (appearing
in future articles.).
.
He points out:
- false positive risk needs to be appropriate for the application.
[drug testing example]
- in a plot of a calibration curve with a non-zero intercept, L(D)
the limit of detection is the amount of analyte that yields a
signal outside the error of the false negative.
.
These comments are often not brought out in many classes.
.
GAS CYLINDERS
SOURCE:  J. V. Hinshaw, LC/GC North America 11-2016, P. 41
Gas Cylinder Safety, Part II:  Set up and Use
What I like about Hinshaw is that he does a fishbone diagram
to assess a wide variety is issues that could come up in
working with a common analytical tool.

One Response to “Watch-Outs. 103. Scientific Publishing, Limits of Analysis, Gas Cylinders”

  1. site admin Says:


    Example
    of Limits of detection testing and testing protocols:
    https://flipboard.com/@flipboard/-man-spends-three-months-in-jail-after-f/f-2f217da1b6%2Fcnn.com

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