Dear Dirk,
one cannot fully correct radiation damage. Normal scaling procedures take care
of the average decay by a smooth resolution-dependant function. Zero-dose
extrapolation goes beyond that but needs all symmetry mates - this does not
fulfill your definition of "identical".
If we really
Dear all,
here is an announcement for a permanent position as cryo-EM beamline scientist
at the Centre for Integrative Biology, Strasbourg, France.
Deadline is tomorrow 2.7.2020 12 am CET.
With best regards,
Bruno Klaholz
Cryo-EM beamline scientist (permanent position):
The IGBMC/CBI is
Dear Gerard and Kay,
yes, you are both right - I have totally forgotten radiation damage! And
correcting for this really makes a difference!
However, if radiation damage is corrected for reflections measured at
different time points under the same geometry, does anything speak
against it,
Hi All,
We need a new beamline scientist in the MX team at the Australian Synchrotron
in Melbourne. This position is on the new microfocus MX3 beamline which is
currently being designed and is scheduled for first users July 2023. This is a
new 4-year fixed-term position in the MX3 build team.
Dear colleagues,
There is an open position in biophysics/structural biology at Merck Healthcare
KGaA in Darmstadt, Germany:
https://jobs.vibrantm.com/merck/job/Darmstadt-Scientist-(all-genders)-HE-64293/605907601/?locale=de_DE
Could you please forward the link to the colleagues you think might
Dear Kay & Gerard,
the only reason, why I want to count differently, is to distinguish
between true and pseudo-multiplicity. Apparently, I get on thin ice by
trying to define "identical" reflections ... maybe, instead, we should
start working with unmerged data in all programs. If I remember
I find, when discussing definitions of words, it’s always good to look in the
OED (well, the SOED, I don’t have the big one). For redundant (redundancy
being defined as the state or quality of being redundant), we find:
1. Superabundant, superfluous, excessive. b. Characterised by superfluity
Yes this seems to be a common misunderstanding, that the meanings of words
such as 'redundancy' have to be the same in an informal non-scientific
context and in a formal technical/scientific context.
So we can say that in an informal context, 'redundancy' means "unnecessary
duplication (or
hi ian,
oh no! all those trump fans across the pond will love the "hypothesis of
evolution" idea. they won't know the word "hypothesis" of course, but
unfortunately you might get famous for it anyhow.
cheers
jon
Von: CCP4 bulletin board Im Auftrag von Ian Tickle
Gesendet: Mittwoch, 1. Juli
Dear Ian,
I take issue with your assertion below that “the totally precise **scientific**
meaningis an **engineering**” definition.
Science and engineering are not the same. Health and safety leads to the need
in engineering for redundancy and indeed safety factors. In essence, in
Dear colleagues,
I would like to inform you that EMBL Hamburg is currently advertising
for two Group Leader positions.
*Reference Number HH00190*: Group leader - New approaches in electron
microscopy
/Closing date: 13th August 2020/
*Reference Number HH00191:* Group Leader - X-ray imaging
Sorry to take this thread on a detour/diversion: What I was attempting
to point out below, perhaps unclearly, is that the different
interpretations of the word "redundant" are a cultural difference. As a
student of multiple English languages perhaps I can explain:
Few US English speakers
since i am not getting shit/shite done may i also point out aluminium/aluminum
On Wednesday, July 1, 2020, 11:52:21 AM PDT, James Holton
wrote:
Sorry to take this thread on a detour/diversion: What I was attempting to point
out below, perhaps unclearly, is that the different
Please post:
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Hi Ian, good to hear! Hi everyone, thanks for the etymological - and
etiological - discussion. I'm good whatever the choice.
John, I beg to differ with the absolute statement that xfels offer damage free
hkls - back in 2016 yet another great experimental work, by Inoue et al
On Wednesday, 1 July 2020 18:50:57 PDT Jose Brandao-Neto wrote:
> Hi Ian, good to hear! Hi everyone, thanks for the etymological - and
> etiological - discussion. I'm good whatever the choice.
>
> John, I beg to differ with the absolute statement that xfels offer damage
> free hkls - back in
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The position is available starting January 2021 in the Department of Biological
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Dear Bernard and other bulletin board members,
As Gerard mentioned, current data processing programs and table 1’s do not make
this distinction, but of course, you are free to ask the community to introduce
it.
My proposal to use “measurements per reflections” is not a joke. It exactly
Dear Frank,
in general it is not possible to determine the intensity of a reflection from a
single fine slice. One needs slices for the complete reflection.
Also, like Bernard, you are imposing criteria on the MPR, which are not imposed
on the multiplicity/redundancy/abundancy.
All I ask the
Good morning Jon,
Ah yes that is a good word from quantum mechanics but no it isn’t in the IUCr
Dictionary, nor in the Statistical Descriptors section on Recommendations.
http://ww1.iucr.org/iucr-top/comm/cnom/statdes/recomm.html
In Laue mode, Xray or neutron, the MPR should be large enough to
Dear Herman,
I think, your MPR proposal is a great idea and would like to second it!
And I would also like to propose that data processing programs just
average "identical" reflections measured under the same geometry and
count them only once (*), so that, in the end, we will get a realistic
Dear Dirk,
Aren't you for getting about radiation damage? The n measurements of
the same hkl with the same geometry would not be equivalent, although they
would enable the tracking of radiation damage without the confounding with
absorption effects that comes from considering
Dear Dirk,
XDS_ASCII.HKL (and equivalent files from other processing software) gives you
all the information that you're after, since every reflection is stored
individually.
However when you analyze that, you will find that in a data set that comprises
less than 360 degrees of rotation, there
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