User talk:Bert Grijsen Laboratorium en Hobby

Welcome!
Hello, Bert Grijsen Laboratorium en Hobby, and welcome to Wikipedia. We appreciate encyclopedic contributions, but some of your recent contributions seem to be advertising or for promotional purposes. Wikipedia does not allow advertising. For more information on this, please see: If you still have questions, there is a new contributors' help page, or you can. You may also find the following pages useful for a general introduction to Wikipedia:
 * Policy on neutral point of view
 * Guideline on spam
 * Guideline on external links
 * Guideline on conflict of interest
 * FAQ for Organizations
 * The five pillars of Wikipedia
 * How to edit a page and how to develop articles
 * Help pages
 * Tutorials
 * Article wizard for creating new articles
 * Simplified Manual of Style
 * Task Center – need some ideas of what kind of things need doing? Go here.

I hope you enjoy editing Wikipedia! Please sign your name on talk pages using four tildes ( ~ ); this will automatically produce your name and the date. Feel free to write a note on the bottom of my talk page if you want to get in touch with me. Again, welcome! 94rain Talk  03:03, 29 December 2023 (UTC)

December 2023
Hello, I'm 94rain. I wanted to let you know that one or more external links you added to Hemagglutination have been removed because they seemed to be inappropriate for an encyclopedia. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page, or take a look at our guidelines about links. Thank you. 94rain Talk  03:02, 29 December 2023 (UTC)


 * Hello I am Bert. Sorry, today is my first time using the edit function. I think the video gives a good idea of ​​what agglutination entails. Bert Grijsen Laboratorium en Hobby (talk) 03:12, 29 December 2023 (UTC)

January 2024
I noticed that you have posted comments in a language other than English. At the English-language Wikipedia, we try to use English for all comments. Posting all comments in English makes it easier for other editors to join the conversation and help you. If you cannot avoid using another language, then please provide a translation into English, if you can. If you cannot provide a translation, please go to the list of Wikipedias, look in the list for a Wikipedia that is in your language, and edit there instead of here. For more details, see Wikipedia:Talk page guidelines. Thank you. MrOllie (talk) 19:35, 6 January 2024 (UTC)


 * I want to ask why all my recent contributions has been removed?
 * I have been working in a hospital laboratory for 41 years, where I make presentations and videos for my colleagues and students, all of which are educational, without to be advertising or for promotion.
 * I enjoy sharing my laboratory knowledge and I don't understand why you removed all contributions?
 * So I would like to ask you to repost my videos. Thank you in advance for this. Bert Grijsen Laboratorium en Hobby (talk) 10:36, 8 January 2024 (UTC)
 * I want to ask why all my recent contributions has been removed?
 * I have been working in a hospital laboratory for 41 years, where I make presentations and videos for my colleagues and students, all of which are educational, without to be advertising or for promotion.
 * I enjoy sharing my laboratory knowledge, so I would like to ask you to repost my videos. Thank you in advance for this.
 * Bert Grijsen Bert Grijsen Laboratorium en Hobby (talk) 22:53, 9 January 2024 (UTC)
 * Verifiability: All information on Wikipedia must be verifiable from reliable sources. This means that you need to provide references to support your claims, even if they come from your own experience or expertise.
 * No Original research: Wikipedia does not allow original research to be added to articles. This means that you cannot add information that you have not published in a reliable source.
 * 94rain Talk  04:53, 10 January 2024 (UTC)
 * What is a reliable reference?
 * As an example, my agglutination video of red blood cells: A number of years ago, during blood transfusions, I wanted to explain to trainees how agglutination works at a microscopic level. On the internet you can only see theoretical animation videos and total agglutinations. My video was created by combining erythrocytes and antibodies and shows the agglutination reaction from the start. There is no reference because, as far as I can find, no one else has done this either. Bert Grijsen Laboratorium en Hobby (talk) 05:45, 10 January 2024 (UTC)
 * See some types of reliable sources: Reliable_sources.
 * Wikipedia is not a research journal. It's an encyclopedia. Consider publish such content to Wikiversity. 94rain  Talk  05:47, 10 January 2024 (UTC)
 * Thank you for your information, I will try it. Bert Grijsen Laboratorium en Hobby (talk) 06:01, 10 January 2024 (UTC)
 * Sorry, I just took a look at your videos again. It seems to be demostration purposes instead of things like concept explanation. I think in this way it is acceptable. 94rain  Talk  05:59, 10 January 2024 (UTC)
 * It's acceptable under Videos. I suggest cutting the video shorter. 94rain  Talk  06:02, 10 January 2024 (UTC)
 * How short should it be? Bert Grijsen Laboratorium en Hobby (talk) 06:09, 10 January 2024 (UTC)
 * It's recommended to be under 30 seconds, based on that information page. 94rain  Talk  06:09, 10 January 2024 (UTC)
 * Can I repost the video if it is shorter than 30 seconds or do I have to wait for the consultation? Bert Grijsen Laboratorium en Hobby (talk) 06:24, 10 January 2024 (UTC)
 * You're right, 30 seconds is enough. Bert Grijsen Laboratorium en Hobby (talk) 13:09, 11 January 2024 (UTC)
 * Can I repost my agglutination video? Bert Grijsen Laboratorium en Hobby (talk) 06:06, 10 January 2024 (UTC)
 * It might be possible to add the video back, but the sentences you added seem original research. We'll need to discuss with the other editor before adding it back to avoid Edit warring. 94rain  Talk  06:08, 10 January 2024 (UTC)
 * Please avoid writing claims like this without providing reliable sources. Every blood transfusion is a transplant of living blood cells. These cells can cause an agglutination reaction.
 * "I simulate under the microscope" This would be original research.
 * Regarding adding the video back, I think it'd better to wait for a discussion. 94rain  Talk  06:26, 10 January 2024 (UTC)
 * What can I do with the other contributions, for example the demonstration video about Polarized light microscopy? Bert Grijsen Laboratorium en Hobby (talk) 08:41, 10 January 2024 (UTC)
 * A few other videos like File:Pseudothrombocytopenia blood test using the phase contrast microscope libtheora.ogg fits better at Wikiversity. 94rain  Talk  08:55, 10 January 2024 (UTC)
 * As another editor mentioned, please do not add soundtracks or maybe also captions to these videos. Or publish such videos to Wikiversity if you wish. 94rain  Talk  01:36, 12 January 2024 (UTC)
 * I will try Wikiversity. Bert Grijsen Laboratorium en Hobby (talk) 02:14, 12 January 2024 (UTC)
 * What is the problem with the captions, too long? Bert Grijsen Laboratorium en Hobby (talk) 06:11, 12 January 2024 (UTC)
 * I try to learn from your good comments. Bert Grijsen Laboratorium en Hobby (talk) 06:14, 12 January 2024 (UTC)

Uric acid image
Hello - on my talk page, you said: ''Why did you delete my image. I work in a hospital laboratory and the image at the top of the page shows uric acid needles in synovial fluid in someone with gout. The image I posted of uric acid crystals in urine have a completely different shape and are the cause of kidney stones.''

In this edit, I reverted use of your image showing uric acid cubes in urine, which is a different image from uric acid shards seen in synovial fluid of people with gout (as discussed in the gout article). There is already an image showing a uric acid cube as a "urinary" source.

First, thinking of the general non-science user of the encyclopedia, it isn't clear to me how your image educates the public because the relationship of uric acid cubes to the etiology of kidney stones is not confirmed with WP:MEDSCI sources.

Second, use of your image impressed me as original research, WP:OR - there are no sources saying a) that uric acid cubes contribute to kidney stone formation, or b) that the uric acid cubes are always the same shape in kidney stones (if indeed they exist in the stones). This section of the uric acid article does not make a strong case for its role in kidney stone formation (mainly a calcium oxalate deposit disorder). Zefr (talk) 16:02, 29 January 2024 (UTC)


 * I understand and would like to thank you for the detailed answer. Bert Grijsen Laboratorium en Hobby (talk) 17:56, 29 January 2024 (UTC)
 * No worries. Good luck! Zefr (talk) 18:34, 29 January 2024 (UTC)