2012 Standards Discussion - Revision history

AdrianRennie: Organise section for discussion after meeting

2012-08-26T08:34:33Z

Organise section for discussion after meeting

← Older revision		Revision as of 08:34, 26 August 2012
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	Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.		Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.

			= Report on Work at the Meeting =

			The Report of the working group is available here.[[StandardsGroupReport]]


	= New Projects: Discussion and Comments Added after the Meeting =		= New Projects: Discussion and Comments Added after the Meeting =
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	* Analysis (fitting) programs need to describe what they expect for resolution data.		* Analysis (fitting) programs need to describe what they expect for resolution data.
	* Analysis of multiple scattering requires as a minimum some transmission information with the reduced data. The description may need to include how this is determined (solid-angles of integration, etc.)		* Analysis of multiple scattering requires as a minimum some transmission information with the reduced data. The description may need to include how this is determined (solid-angles of integration, etc.)

	~~= Report =~~

	~~The Report of the working group is available here.[[StandardsGroupReport]]~~


	[[Category: canSAS 2012]]		[[Category: canSAS 2012]]

AdrianRennie: /* Discussion on Standardistation */

2012-08-26T08:31:07Z

Discussion on Standardistation

AdrianRennie: /* Discussion and Comments Added after the Meeting */ Try to organise discussion

2012-08-26T08:16:34Z

Discussion and Comments Added after the Meeting: Try to organise discussion

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 Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.
-== Discussion and Comments Added after the Meeting==
+== New Projects: Discussion and Comments Added after the Meeting==
 :[[User:Katy wood|Katy wood]] 10:09, 14 August 2012 (EDT)
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 Quokka data on GI: [[Image:GI D2O for wiki.jpg|SASroot]]
 = Report =

AdrianRennie: /* Data formats and publishing */

2012-08-21T05:37:00Z

Data formats and publishing

← Older revision		Revision as of 05:37, 21 August 2012
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	* Specific information about the intensity of background could be included in data files or deposit data.		* Specific information about the intensity of background could be included in data files or deposit data.

	* It is to be expected that publication standards may eventually require in some specific fields information about 'background', calibration procedures. This may be very important particularly when small signals are measured with large backgrounds.		* It is to be expected that publication standards may eventually require, in some specific fields, information about 'background', calibration procedures, etc.. This may be very important, particularly when small signals are measured with large backgrounds.

	* Some examples of metadata relating to the sample for ~~wich~~ recommended tags could be ~~usefule~~ are:		* Some examples of metadata relating to the sample for which recommended tags could be useful are:

	SASsample:		SASsample:
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	~~corresponding~~ uncertainty (systematic, ~~SDevs~~) may be required for any of these sample parameters.		Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.

	== Discussion and Comments Added after the Meeting==		== Discussion and Comments Added after the Meeting==

Katy wood: /* Discussion and Comments Added after the Meeting */

2012-08-21T05:07:57Z

Discussion and Comments Added after the Meeting

← Older revision		Revision as of 05:07, 21 August 2012
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	Re protein standards: On Quokka we've measured Glucose Isomerase (170 kDa, 2 mg/mL) + Lysozyme (14 kDa, 8 mg/mL) in both H2O and D2O.		Re protein standards: On Quokka we've measured Glucose Isomerase (170 kDa, 2 mg/mL) + Lysozyme (14 kDa, 8 mg/mL) in both H2O and D2O.
	Both are commerically available, are nicely monodisperse, withstand freezing once in solution and scattering fits the published structures well – I’m writing short note up about this now, to show quokka capabilities for structural biology. Molecular weights extracted from I(0) were within 10%.		Both are commerically available, are nicely monodisperse, withstand freezing once in solution and scattering fits the published structures well – I’m writing short note up about this now, to show quokka capabilities for structural biology. Molecular weights extracted from I(0) were within 10%.

			Quokka data on GI: [[Image:GI D2O for wiki.jpg\|SASroot]]

	= Report =		= Report =

AdrianRennie: /* Discussion 30 July 2012 */ add section for post meeting comments and discussion

2012-08-15T11:11:07Z

Discussion 30 July 2012: add section for post meeting comments and discussion

← Older revision		Revision as of 11:11, 15 August 2012
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	corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.		corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.

			== Discussion and Comments Added after the Meeting==

	:[[User:Katy wood\|Katy wood]] 10:09, 14 August 2012 (EDT)		:[[User:Katy wood\|Katy wood]] 10:09, 14 August 2012 (EDT)

Katy wood: /* Discussion 30 July 2012 */

2012-08-14T14:09:14Z

Discussion 30 July 2012

← Older revision		Revision as of 14:09, 14 August 2012
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	corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.		corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.



			:[[User:Katy wood\|Katy wood]] 10:09, 14 August 2012 (EDT)
			Re protein standards: On Quokka we've measured Glucose Isomerase (170 kDa, 2 mg/mL) + Lysozyme (14 kDa, 8 mg/mL) in both H2O and D2O.
			Both are commerically available, are nicely monodisperse, withstand freezing once in solution and scattering fits the published structures well – I’m writing short note up about this now, to show quokka capabilities for structural biology. Molecular weights extracted from I(0) were within 10%.

	= Report =		= Report =

AdrianRennie: /* Data formats and publishing */

2012-08-01T07:25:12Z

Data formats and publishing

← Older revision		Revision as of 07:25, 1 August 2012
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	* In some fields such as biological small-angle scattering there are requirements emerging that will require specific information and data to be included in an archive for publication.		* In some fields such as biological small-angle scattering there are requirements emerging that will require specific information and data to be included in an archive for publication.

	* The description of the reduction process is facilitated by maintaining a record of data treatment history. In particular component measurements such as empty cells, background may need to be specified.		* The description of the reduction process is facilitated by maintaining a record of data treatment history. In particular component measurements such as empty cells, measured background and normalisation may need to be specified.

			* The requirements for recording the reduction could be met by including a systematic record in data files, for example a record of the process for each step with a record of the software used. This also facilitates identification of problems that may arise in the reduction.

			* Specific information about the intensity of background could be included in data files or deposit data.

	* It is to be expected that publication standards may eventually require in some specific fields information about 'background', calibration procedures. This may be very important particularly when small signals are measured with large backgrounds.		* It is to be expected that publication standards may eventually require in some specific fields information about 'background', calibration procedures. This may be very important particularly when small signals are measured with large backgrounds.

AdrianRennie: /* Data formats and publishing */

2012-07-31T08:58:01Z

Data formats and publishing

← Older revision		Revision as of 08:58, 31 July 2012
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	corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.		corresponding uncertainty (systematic, SDevs) may be required for any of these sample parameters.

			= Report =

			The Report of the working group is available here.[[StandardsGroupReport]]


	[[Category: canSAS 2012]]		[[Category: canSAS 2012]]

AdrianRennie: /* Data formats and publishing */

2012-07-31T05:26:21Z

Data formats and publishing

← Older revision		Revision as of 05:26, 31 July 2012
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	Best practices in data handling and establishment of reliability will require automated transfer of data from the source measurement to the archive format of reduced data that is required for acceptance of publication. This will include both scattering data and metadata that describes sample composition and conditions. The treated data format should facilitate this process. Different scientific fields and experiments may require different parameters to be described.		Best practices in data handling and establishment of reliability will require automated transfer of data from the source measurement to the archive format of reduced data that is required for acceptance of publication. This will include both scattering data and metadata that describes sample composition and conditions. The treated data format should facilitate this process. Different scientific fields and experiments may require different parameters to be described.

			* In some fields such as biological small-angle scattering there are requirements emerging that will require specific information and data to be included in an archive for publication.

			* The description of the reduction process is facilitated by maintaining a record of data treatment history. In particular component measurements such as empty cells, background may need to be specified.

			* It is to be expected that publication standards may eventually require in some specific fields information about 'background', calibration procedures. This may be very important particularly when small signals are measured with large backgrounds.

			* Some examples of metadata relating to the sample for wich recommended tags could be usefule are:

	SASsample:		SASsample:
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	DeformationType: Shear, 1D-elongation, 2D-elongation, compression		DeformationType: Shear, 1D-elongation, 2D-elongation, compression

	- ~~Degree~~ of deformation		- Extent of deformation

	- frequency		- frequency

			Stress

	Temperature (for temperature jump)		Temperature (for temperature jump)

← Older revision		Revision as of 08:31, 26 August 2012
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	= Discussion on ~~Standardistation~~ =		= Discussion on Standardisation =

	== Comments Made Prior to canSAS2012 ==		== Comments Made Prior to canSAS2012 ==
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	Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.		Corresponding uncertainty (e.g. systematic, standard deviations of random errors) may be required for any of these sample parameters.

	== New Projects: Discussion and Comments Added after the Meeting==		= New Projects: Discussion and Comments Added after the Meeting =

	We are discussing new projects for standardisation here. When they are formulated further, they will be moved to their own pages.		We are discussing new projects for standardisation here. When they are formulated further, they will be moved to their own pages.

	=== Standards for BioSAS ===		== Standards for BioSAS ==

	:[[User:Katy wood\|Katy wood]] 10:09, 14 August 2012 (EDT)		:[[User:Katy wood\|Katy wood]] 10:09, 14 August 2012 (EDT)
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	Quokka data on GI: [[Image:GI D2O for wiki.jpg\|SASroot]]		Quokka data on GI: [[Image:GI D2O for wiki.jpg\|SASroot]]

	=== Grazing Incidence Small-Angle Scattering ===		== Grazing Incidence Small-Angle Scattering ==

	A durable sample with surface structure suitable for repeatable measurements with both X-rays and neutrons is being investigated. Sarah Rogers (ISIS) is investigating what can be fabricated.		A durable sample with surface structure suitable for repeatable measurements with both X-rays and neutrons is being investigated. Sarah Rogers (ISIS) is investigating what can be fabricated.

	=== Systematic Errors - Understanding Data ===		== Systematic Errors - Understanding Data ==

	The recognition that calibrations, data reduction procedures and other factors such as resolution, multiple scattering and variations with wavelength has been an important conclusion of the previous 'round-robin' exercises. Quantification and understanding magnitudes of these effects is to be an on-going activity.		The recognition that calibrations, data reduction procedures and other factors such as resolution, multiple scattering and variations with wavelength has been an important conclusion of the previous 'round-robin' exercises. Quantification and understanding magnitudes of these effects is to be an on-going activity.