(Mary Ann) Elizabeth Stephansen was a Norwegian mathematician and educator. She was one of the first Norwegian women to be awarded a doctorate degree.
"}{"fact":"Purring does not always indicate that a cat is happy. Cats will also purr loudly when they are distressed or in pain.","length":117}
{"slip": { "id": 222, "advice": "Respect other people's opinions, even when they differ from your own."}}
{"fact":"A sexually-active feral tom-cat \\owns\\\" an area of about three square miles and \\\"\"sprays\\\"\" to mark his territory with strong smelling urine.\"\"\"","length":145}
{"fact":"Lions are the only cats that live in groups, called prides. Every female within the pride is usually related.","length":109}
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{"type":"standard","title":"Single particle analysis","displaytitle":"Single particle analysis","namespace":{"id":0,"text":""},"wikibase_item":"Q7523967","titles":{"canonical":"Single_particle_analysis","normalized":"Single particle analysis","display":"Single particle analysis"},"pageid":28055575,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d5/SingleParticleAnalysis.png/330px-SingleParticleAnalysis.png","width":320,"height":212},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/d/d5/SingleParticleAnalysis.png","width":1400,"height":927},"lang":"en","dir":"ltr","revision":"1288003125","tid":"0de32419-2534-11f0-ac90-7e674d45e8f4","timestamp":"2025-04-29T19:56:35Z","description":"Method of analyzing transmission electron microscopy imagery","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Single_particle_analysis","revisions":"https://en.wikipedia.org/wiki/Single_particle_analysis?action=history","edit":"https://en.wikipedia.org/wiki/Single_particle_analysis?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Single_particle_analysis"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Single_particle_analysis","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Single_particle_analysis","edit":"https://en.m.wikipedia.org/wiki/Single_particle_analysis?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Single_particle_analysis"}},"extract":"Single particle analysis is a group of related computerized image processing techniques used to analyze images from transmission electron microscopy (TEM). These methods were developed to improve and extend the information obtainable from TEM images of particulate samples, typically proteins or other large biological entities such as viruses. Individual images of stained or unstained particles are very noisy, making interpretation difficult. Combining several digitized images of similar particles together gives an image with stronger and more easily interpretable features. An extension of this technique uses single particle methods to build up a three-dimensional reconstruction of the particle. Using cryo-electron microscopy it has become possible to generate reconstructions with sub-nanometer resolution and near-atomic resolution first in the case of highly symmetric viruses, and now in smaller, asymmetric proteins as well. Single particle analysis can also be performed by inductively coupled plasma mass spectrometry (ICP-MS).","extract_html":"
Single particle analysis is a group of related computerized image processing techniques used to analyze images from transmission electron microscopy (TEM). These methods were developed to improve and extend the information obtainable from TEM images of particulate samples, typically proteins or other large biological entities such as viruses. Individual images of stained or unstained particles are very noisy, making interpretation difficult. Combining several digitized images of similar particles together gives an image with stronger and more easily interpretable features. An extension of this technique uses single particle methods to build up a three-dimensional reconstruction of the particle. Using cryo-electron microscopy it has become possible to generate reconstructions with sub-nanometer resolution and near-atomic resolution first in the case of highly symmetric viruses, and now in smaller, asymmetric proteins as well. Single particle analysis can also be performed by inductively coupled plasma mass spectrometry (ICP-MS).
"}