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#sem

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My #SEM shows a female of the #mite #Histiostoma sp. (H. feroniarum-complex, special fixation) on #rottenlemon from Italy, #feeding a mixture of #fungi and #bacteria. It is seen from above and displays the symmetrically #fenestrated #proterosomashield that i.a. stabilizes muscle origins and still needs research. I published research information on that mite as poster #publication.

© #StefanFWirth Berlin (2006-) 2025

Poster S. F. Wirth, FAO, Global Soil Partners. (2024)
fao.org/global-soil-partnershi

#PresentationFr

Je suis technicien de laboratoire au #CIME #EPFL, spécialisé dans la préparation d'échantillons pour la microscopie électronique. #SEM #TEM
Je m'occupe également de la formation sur ces techniques et de la gestion des laboratoires de préparation. 🔬

J'ai travail dans le passé dans tout un tas de domaines, notamment en R&D, #photovoltaique, en caractérisation et en fiabilisation de produit et de matériaux. 🌱

We got our first external contribution to our TACtool software!

TACtool is a desktop GUI tool for planning micro-analysis (e.g. via microprobe or LA-ICP-MS). Users mark the target points, then TACTool produces a CSV of their coordinates to load into the machine.

github.com/BritishGeologicalSu

The merge request adds a user guide to loading the CSV into ESI laser control software.

How in the hell are we still living in a universe where there is no *complete* replacement for #Mplus?

By now there should be some #rlang code, or even #Python, that takes Mplus scripts as input and just does them. And yet, no.

Everybody I know who uses Mplus says -- with complete seriousness (!!) -- that there are R packages that implement some of its functions, but they still need Mplus to do everything.

What am I missing? Why?

@rstats #wtf #science #stats #sem #structuralequationmodeling

Prefeitura de SP suspendeu serviço de #Aborto #Legal #Sem denúncias de irregularidades -

apublica.org/2024/05/prefeitur… -

Via Agencia Publica -

Não houve denúncia de aborto ilegal no hospital nos últimos anos... não havia motivo para suspeitar de ilegalidades no serviço a ponto de suspendê-lo -

Agência Pública · Aborto legal: Prefeitura SP suspendeu serviço sem irregularidadeInformações obtidas por LAI derrubam argumento para interrupção de procedimentos de aborto no hospital Vila Nova Cachoeirinha

In an age of LLMs, is it time to reconsider human-edited web directories?

Back in the early-to-mid '90s, one of the main ways of finding anything on the web was to browse through a web directory.

These directories generally had a list of categories on their front page. News/Sport/Entertainment/Arts/Technology/Fashion/etc.

Each of those categories had subcategories, and sub-subcategories that you clicked through until you got to a list of websites. These lists were maintained by actual humans.

Typically, these directories also had a limited web search that would crawl through the pages of websites listed in the directory.

Lycos, Excite, and of course Yahoo all offered web directories of this sort.

(EDIT: I initially also mentioned AltaVista. It did offer a web directory by the late '90s, but this was something it tacked on much later.)

By the late '90s, the standard narrative goes, the web got too big to index websites manually.

Google promised the world its algorithms would weed out the spam automatically.

And for a time, it worked.

But then SEO and SEM became a multi-billion-dollar industry. The spambots proliferated. Google itself began promoting its own content and advertisers above search results.

And now with LLMs, the industrial-scale spamming of the web is likely to grow exponentially.

My question is, if a lot of the web is turning to crap, do we even want to search the entire web anymore?

Do we really want to search every single website on the web?

Or just those that aren't filled with LLM-generated SEO spam?

Or just those that don't feature 200 tracking scripts, and passive-aggressive privacy warnings, and paywalls, and popovers, and newsletters, and increasingly obnoxious banner ads, and dark patterns to prevent you cancelling your "free trial" subscription?

At some point, does it become more desirable to go back to search engines that only crawl pages on human-curated lists of trustworthy, quality websites?

And is it time to begin considering what a modern version of those early web directories might look like?

@degoogle #tech #google #web #internet #LLM #LLMs #enshittification #technology #search #SearchEngines #SEO #SEM

Various cool #SEM images I have taken during my master thesis:

These are ZnO #nanowires on a ZnO layer. The wires have a diameter 300 times smaller than a human hair.

Normally they should be attached to the silicon substrate, but a scratch caused this cool looking damage to the sample.

ZnO nanowires have cool properties, for example each wire can work as its own tiny laser under the right conditions.