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CCP4BB Home

CCP4BB  March 2009

CCP4BB March 2009

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Subject:

Re: images

From:

harry powell <[log in to unmask]>

Reply-To:

harry powell <[log in to unmask]>

Date:

Wed, 18 Mar 2009 17:57:56 +0000

Content-Type:

text/plain

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Parts/Attachments

text/plain (133 lines)

Hi

I've heard of a tool from the Golden State which could (potentially)
be used for forging diffraction images... I believe it's called
"mlfsom".

On 18 Mar 2009, at 17:50, Felix Frolow wrote:

> One convincing argument I have:
> We will be able to catch fraud ultimately. Fraud is a devastation
> for structural biology.
> ...Unless they will be smart enough to forge diffraction data
> images, not a big deal.
>
> The second one - in the case of a controversy of the deposited
> results (possible thing) we can try to re-interpret the space group
> and Bravais lattice
>
> And one more, when we have time we can show that we know better to
> process and to refine ;-)
>
> Dr  Felix Frolow
> Professor of Structural Biology and Biotechnology
> Department of Molecular Microbiology
> and Biotechnology
> Tel Aviv University 69978, Israel
>
> Acta Crystallographica D, co-editor
>
> e-mail: [log in to unmask]
> Tel:           ++972 3640 8723
> Fax:          ++972 3640 9407
> Cellular:   ++972 547 459 608
>
> On Mar 18, 2009, at 6:41 PM, Garib Murshudov wrote:
>
>> Dear all
>>
>> Before going into and trying to find a technical solution to the
>> problem it would be good if decide if we need images. As far as I
>> know if we face with a problem to solve and we know that it is
>> necessary to solve then we find technical solution to the problem
>> (either from other fields or we find our own solution with some
>> elements of reinvention of new MX wheels).
>>
>> Do we need images to store? What kind of information we can
>> extract from images that we cannot from amplitudes, intensities
>> (even unmerged)? Does anybody have a convincing argument for
>> favour of images?
>>
>>
>> regards
>> Garib
>>
>>
>>
>> On 18 Mar 2009, at 16:32, Herbert J. Bernstein wrote:
>>
>>> Actually the radiologists who manage CT and PET scans of brains
>>> do have
>>> a solution, called DICOM, see http://medical.nema.org/.  If we work
>>> together as a community we should be able to do as well as the
>>> rocket scientists and the brain surgeons' radiologists, perhaps even
>>> better. -- Herbert
>>>
>>> =====================================================
>>> Herbert J. Bernstein, Professor of Computer Science
>>>  Dowling College, Kramer Science Center, KSC 121
>>>       Idle Hour Blvd, Oakdale, NY, 11769
>>>
>>>                +1-631-244-3035
>>>                [log in to unmask]
>>> =====================================================
>>>
>>> On Wed, 18 Mar 2009, Jacob Keller wrote:
>>>
>>>> Apparently it DOES take a rocket scientist to solve this
>>>> problem. Maybe the brain surgeons also have a solution?
>>>>
>>>> JPK
>>>>
>>>> *******************************************
>>>> Jacob Pearson Keller
>>>> Northwestern University
>>>> Medical Scientist Training Program
>>>> Dallos Laboratory
>>>> F. Searle 1-240
>>>> 2240 Campus Drive
>>>> Evanston IL 60208
>>>> lab: 847.491.2438
>>>> cel: 773.608.9185
>>>> email: [log in to unmask]
>>>> *******************************************
>>>>
>>>> ----- Original Message ----- From: "Klaas Decanniere"
>>>> <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Wednesday, March 18, 2009 5:36 AM
>>>> Subject: Re: [ccp4bb] images
>>>>
>>>>
>>>>> Herbert J. Bernstein wrote:
>>>>> Other sciences have struggled with this and seem to have found
>>>>> an answer.
>>>>> Have e.g. a look at http://heasarc.nasa.gov/docs/heasarc/fits.html
>>>>> kind regards,
>>>>> Klaas
>>>>>>
>>>>>> This is a good time to start a major crystallogrpahic image
>>>>>> archiving effort.  Money may well be available now that will
>>>>>> not be
>>>>>> avialable six month from now, and we have good, if not perfect,
>>>>>> solutions available for many, if not all, of the technical issues
>>>>>> involved.  Is it really wise to let this opportunity pass us by?
>>>>>>>> The deposition of images would be possible providing some
>>>>>>>> consistent
>>>>>>>> imagecif format was agreed.
>>>>>>>> This would of course be of great use to developers for certain
>>>>>>>> pathological cases, but not I suspect much value to the user
>>>>>>>> community - I down load structure factors all the time for test
>>>>>>>> purposes but I probably would not bother to go through the data
>>>>>>>> processing, and unless there were extensive notes associated
>>>>>>>> with
>>>>>>>> each set of images I suspect it would be hard to reproduce
>>>>>>>> sensible
>>>>>>>> results.
>>>>
>>>

Harry
--
Dr Harry Powell, MRC Laboratory of Molecular Biology, MRC Centre, Hills
Road, Cambridge, CB2 0QH

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