View source for User:Michael D. Turnbull

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{{User citizen United Kingdom}}
{{User Chemist}}
{{User Cam Pembrokian}}
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{{User Wikipedian for|year=2011|month=01|day=17|diff=https://en.wikipedia.org/w/index.php?title=Special:Log&logid=34059659 }}
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This is the user page for Michael (Mike) D. Turnbull, created on 26 April 2018.
My first contribution was a major re-write and expansion of the biography of [[Ralph Raphael]], followed by additions on other pages to cross-reference him. I have done the same for [[Alan Battersby]]. I work to improve articles on [[Imperial Chemical Industries|ICI]]; pesticides invented at [[Jealott's Hill]], for example [[2,4-D]], [[MCPA]], [[diquat]], [[cyhalothrin]], [[paclobutrazol]], [[tefluthrin]], [[fluazifop]] and [[azoxystrobin]]; plus others in [[Syngenta]]'s product range such as [[butafenacil]], [[mesotrione]], [[pydiflumetofen]] and [[acibenzolar]]. I also write about biosynthetic routes, for example [[cobalamin biosynthesis|vitamin B<sub>12</sub>]] and [[Chlorophyllide|chlorophyll]], adding oddments related to chemistry in general.

Chemistry is the study of the behaviour of the chemical elements and there is simple template here which gives their names on hover-over and allows readers to jump to the relevant pages in the encyclopaedia by clicking on the cell of interest. My professional focus is [[organic chemistry]] and during my career I have made many novel compounds containing the marked elements.
{{Periodic table (18 columns, micro)|mark=C,H,N,O,S,F,Cl,Br,P}}

I prefer to edit existing articles rather than create new ones. At present there are {{NUMBEROFARTICLES}} articles on the English WIkipedia and my opinion is that this is too many. For every new article it might be best to delete a less worthwhile one, so new editors should consider using [[WP:AfD]] before [[WP:AfC]].

[[File:Yuendumu Gold 01.jpg|thumb|left|Yuendumu Gold 01]]
In October 2020 I assisted [[Ed Gold]] by uploading some of his remarkable photos to Wikimedia Commons with <nowiki>{{CC BY-SA 4.0}}</nowiki> licenses, which means not only that they can be incorporated in articles here but also that they may be freely downloaded for any purpose whatever, provided that Ed Gold and/or Wikipedia is acknowledged if they are subsequently published. Note, however that many are portraits of living people and these persons are protected by <nowiki>{{Personality rights}}</nowiki>, which means that they must be contacted before the image can be used for a commercial venture. This is not a hurdle for re-use within Wikipedia articles or for personal non-commercial use.
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==List of recent contributions==
{{Special:Contribs/Michael D. Turnbull|limit=10}}
==Useful links==
* [https://wikipedia.cheminfo.org/# Wikipedia Chemical Structure Explorer] allows search of Wikipedia chemistry by substructure.
* [https://archive.org/web/ Internet Archive] ([[Wayback Machine]]) to check if a webpage has been archived ''or'' to archive one.
* [https://cse.google.com/cse?cx=007734830908295939403:galkqgoksq0 Wikipedia custom Google search engine]: put the search term in the box.
* [[User:Headbomb/unreliable]] for documentation on unreliable sources script.
* [[WP:Citation expander]] gadget as a timesaver in creating accurate citations, especially for scientific references with a [[digital object identifier]].
* Alternative to citation expander is [https://citer.toolforge.org/ citer.toolforge] which can take a wider range of inputs.
* [https://stats.wikimedia.org/#/all-projects This link] gives fascinating statistics about the global use of Wikipedia.
* [https://seealso.org/ .... and this link] gives visualisations regarding all sorts of Wikipedia-related material.
* [[WP:Records]] is a page with current records of all sorts relating to the encyclopaedia.
* To find contributions that appear missing for an editor using an IPv6 address: add {{code|/64}} to the end of the URL. For example [[Special:Contributions/2601:5C0:C380:4980:BD25:9843:27D3:B53C/64]]

==Using search-and-replace with regex search==
The source editor has an "advanced" menu bar with a search-and-replace function (icon on right). This is very powerful but must be used with care! An interesting example is to use a [[RegEx]] search to convert external links incorrectly placed in the body text into proper citations:

1) Search for expression= <code>\[https?(.*?)\]</code> (this matches both http and https prefixes)

2) Replace with <code><nowiki><ref>https$1</ref></nowiki></code> (tick box "Treat search string as a regular expression")

3) Preview to check whether any legitimate external links have been converted to refs and manually put them back. Save/publish changes.

Finally, use the [[WP:ReFill]] tool [https://refill.toolforge.org/ng/ at this link] to convert the bare URLs into {{tl|cite web}} templates.

==The never-ending tasks==
=== Removing imdb links that look like wikilinks===
See [[WT:WikiProject Film/Archive 79#Masking imdb links as wikilinks]] for the background.
These searches should give no hits but usually will have some that can usefully be cleaned up.
*[https://en.wikipedia.org/w/index.php?search=insource%3A%22imdbname%22+insource%3A%2F%5C%5Bimdbname%3A%2F&ns0=1 Search for imdbname errors]
*[https://en.wikipedia.org/w/index.php?search=insource%3A%22imdbtitle%22+insource%3A%2F%5C%5Bimdbtitle%3A%2F&ns0=1 Search for imdbtitle errors]
=== Removing links to guidechem.com ===
[https://en.wikipedia.org/w/index.php?title=Special:Search&limit=500&offset=0&ns0=1&search=insource%3A%22Guidechem.com%22 This insource search should have no hits] and if it does the edit that introduced them should be reverted.
=== WikiProject cleanup listing===
External link to [https://bambots.brucemyers.com/cwb/index.html WikiProject Cleanup Listings].