ONKI3 | Medical Subject Headings

The ONKI is provided as a part of the ONKI Living Lab - an open lab for testing the latest semantic web technologies in practice, with real users like you. Currently, over 10 000 people are using ONKI each month.

We hope you like the ONKI service and enjoy using it for your purposes!

If you encounter any problems or have improvement ideas, please contact the ONKI team. We are also very much interested in your success stories in using ONKI - please share your experiences!

The ONKI Team

Jouni Tuominen, Living Lab contact person, APIs, widgets, publishing of ontologies, etc.
Eero Hyvönen, professor, head of research group

Former members: Kim Viljanen, Rami Alatalo.

Building the future of the Semantic Web and beyond.

SeCo's homepage
For the latest semantic news, follow us on Twitter and fan us on Facebook!

How can we help you?

Live presentations about ONKI: what it is? how to use it?
Support for creating and publishing ontologies.
Online technical support for using ONKI.
Co-operation in projects.
And more, please ask.


Hierarchy:	Medical Subject Headings (MeSH) ∟ Investigative Techniques ∟ Clinical Laboratory Techniques ∟ Cytological Techniques ∟ Histocytological Preparation Techniques ∟ Replica Techniques ∟ Freeze Fracturing ∟ Freeze Etching Medical Subject Headings (MeSH) ∟ Investigative Techniques ∟ Clinical Laboratory Techniques ∟ Histological Techniques ∟ Histocytological Preparation Techniques ∟ Replica Techniques ∟ Freeze Fracturing ∟ Freeze Etching X
Broader terms:	Medical Subject Headings (MeSH) ∟ Investigative Techniques ∟ Clinical Laboratory Techniques ∟ Cytological Techniques ∟ Histocytological Preparation Techniques ∟ Replica Techniques ∟ Freeze Fracturing ∟ Freeze Etching Medical Subject Headings (MeSH) ∟ Investigative Techniques ∟ Clinical Laboratory Techniques ∟ Histological Techniques ∟ Histocytological Preparation Techniques ∟ Replica Techniques ∟ Freeze Fracturing ∟ Freeze Etching Freeze Fracturing > Replica Techniques > Histocytological Preparation Techniques > Cytological Techniques > Clinical Laboratory Techniques > Investigative Techniques > Medical Subject Headings (MeSH) Freeze Fracturing > Replica Techniques > Histocytological Preparation Techniques > Histological Techniques > Clinical Laboratory Techniques > Investigative Techniques > Medical Subject Headings (MeSH) X
Annotation:	do not confuse with FREEZE FRACTURING (wherein a cryoprotectant is used) X
History note:	Freezing (1966-1968) \| Histological Techniques (1966-1968) \| Microscopy, Electron (1966-1968)X
historyNote*:	73(69) X
publicMeSHNote*:	73 X
Scope note:	A replica technique in which cells are frozen to a very low temperature and cracked with a knife blade to expose the interior surfaces of the cells or cell membranes. The cracked cell surfaces are then freeze-dried to expose their constituents. The surfaces are now ready for shadowing to be viewed using an electron microscope. This method differs from freeze-fracturing in that no cryoprotectant is used and, thus, allows for the sublimation of water during the freeze-drying process to etch the surfaces. X
activeMeSHYear*:	2001 \| 2002 \| 2003 \| 2004 \| 2005 \| 2006 \| 2007X
dateCreated*:	1999-01-01X
dateEstablished*:	1973-01-01X
dateRevised*:	2000-06-22X
recordAuthorizer*:	sjnX
recordMaintainer*:	TAPX
recordOriginator*:	NLMX
Type:	Concept X
URI:	X
Labels and equivalent concepts:	Jäädytys-etsausmenetelmä (fi) Jäädytys-etsaus (fi, replaced) Frysetsning (sv) X
Share:	X