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Karl Pettersson @karlpettersson.bsky.social · 14h

Proportion of deaths due to myocardial infarction since ICD-9: striking contrast between 1980s and 2020s for high-income countries (countries like Scotland and Northern Ireland are in the upper left for men).

Karl Pettersson @karlpettersson.bsky.social · 16h

Genom postning av grafer baserade på internationell statistik (kanske bör utvecklas till blogginlägg, då det hänger ihop med mina tidigare inlägg).

Dessutom genom radering av tidigare version där ena grafen blev fel.

Deaths acute myocardial infarction/all causes by age and population, men, based on data from WHO Mortality Database, created with morr, https://github.com/klpn/morr.

Deaths acute myocardial infarction/all causes by age and population, women, based on data from WHO Mortality Database, created with morr, https://github.com/klpn/morr.

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Karl Pettersson @karlpettersson.bsky.social · 14h

Fälldin i andra vändan!

Karl Pettersson @karlpettersson.bsky.social · 14h

Minns något program i SVT, troligen med Thomas Gylling på 90-talet eller början av 2000-talet, där han berättade om Beethoven. »Han klädde ned sig … och till slut blev han stoppad av polisen som frågade: Haru leg?« Kanske syftade det på händelsen du beskriver.

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Karl Pettersson @karlpettersson.bsky.social · 16h

Genom postning av grafer baserade på internationell statistik (kanske bör utvecklas till blogginlägg, då det hänger ihop med mina tidigare inlägg).

Dessutom genom radering av tidigare version där ena grafen blev fel.

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Karl Pettersson @karlpettersson.bsky.social · 1d

There were such claims about declining sperm already in the 90s. A Swedish study back then noted *lower* age-specific prevalence of fertility problems in younger cohorts, attributing this to less gonorrhea.
doi.org/10.1016/S001...

Redirecting

doi.org

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Karl Pettersson @karlpettersson.bsky.social · 2d

SH/11/87 and BE/32/92 were probably behind the outbreaks I mentioned above. www.antigenic-cartography.org/Science-2004/

Influenza A/H3N2 data published in Smith et al. 2004. Science 305:371-376

www.antigenic-cartography.org

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Karl Pettersson @karlpettersson.bsky.social · 2d

Some of the pre-1918 outbreaks listed here must have been influenza, while others may have been introductions of other viruses, e.g. hCoVs, but we cannot know which is which.

en.wikipedia.org/wiki/Timelin...

Timeline of influenza - Wikipedia

en.wikipedia.org

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Karl Pettersson @karlpettersson.bsky.social · 2d

Flu outbreaks in between these, with larger excess mortality, despite no new A subtype, like 1988 and 1993 in Sweden, are a bit more intriguing.

Frontiers | Mortality of the COVID-19 Outbreak in Sweden in Relation to Previous Severe Disease Outbreaks

Influenza viruses have caused disease outbreaks in human societies for a long time. Influenza often has rapid onset and relatively short duration, both in th...

doi.org

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Karl Pettersson @karlpettersson.bsky.social · 2d

Yes, then introduction of OC43, and other hCoVs, predates modern virology. The 1968 and 2009 flu pandemics were both caused by reassortment with swine flu.

The Persistent Legacy of the 1918 Influenza Virus | NEJM

It is not generally appreciated that descendents of the H1N1 influenza A virus that caused the catastrophic and historic pandemic of 1918–1919 have persisted in humans for more than 90 years and ha...

doi.org

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Karl Pettersson @karlpettersson.bsky.social · 2d

Do we see that for hCoVs like OC43? With flu, there is of course reassortment with animal viruses, leading to new subtypes, and also shifts in dominance between concurrent subtypes, e.g. the bad seasonal flus in late 1980s Sweden, when A(H3) again became dominant over A(H1).

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Karl Pettersson @karlpettersson.bsky.social · 3d

Också slående hur litet som ändrats jämförts med kvartsseklet innan.

Karl Pettersson @karlpettersson.bsky.social · 4d

Hittade den skotska tv-serien The Crow Road (1996, gick i SVT januari 1998). I avsnitt 3 kämpar de med att få igång en mikrodator från slutet av 70-talet, med 8" disketter. »Vi kan vara säkra på att den inte kör Windows 95 i alla fall.«

Karl Pettersson @karlpettersson.bsky.social · 3d

Det blir nog många dagar att fira, för alla hans baksmällor.

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Karl Pettersson @karlpettersson.bsky.social · 3d

“The replacement rate … is 2.1 percent(!)”

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Karl Pettersson @karlpettersson.bsky.social · 4d

Exempel på datorer med motsvarande ålder i dag (R500, sent 00-tal). Vore fortfarande kapabel att köra Linux/BSD med modern webbläsare.

Takten i vilken hårdvara blir föråldrad har avtagit kraftigt, så länge vi inte låter mycket specifika krav (som TPM 2 för Windows 11) hindra oss.

ThinkPad R series - Wikipedia

https://en.wikipedia.org/wiki/ThinkPad_R_series#2008-2010_[7]

Karl Pettersson @karlpettersson.bsky.social · 4d

Hittade den skotska tv-serien The Crow Road (1996, gick i SVT januari 1998). I avsnitt 3 kämpar de med att få igång en mikrodator från slutet av 70-talet, med 8" disketter. »Vi kan vara säkra på att den inte kör Windows 95 i alla fall.«

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Karl Pettersson @karlpettersson.bsky.social · 4d

When epidemiological studies are discussed in media, hazard ratios of 1.3, for mortality, are often explained like “30 % increased risk of dying prematurely”. That is probably not very clarifying.

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Karl Pettersson @karlpettersson.bsky.social · 4d

My job consists (partly) in that: curating agricultural experiment datasets with R scripts.

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Karl Pettersson @karlpettersson.bsky.social · 4d

It is also somewhat skewed by birth cohorts (in 2024 life tables, 77 % of men, and 84 % of women survive to age 76).

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Karl Pettersson @karlpettersson.bsky.social · 4d

Skriver detta med det som de Vault beskriver som »the only Linux distribution that fits in my head«. Men det är fortfarande ruskigt komplext (och dessutom med Firefox på det), jämfört med t.ex. DOS eller Oberon.

Karl Pettersson @karlpettersson.bsky.social · 4d

The OP in that picture is not doing science much good either.

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Karl Pettersson @karlpettersson.bsky.social · 4d

Operativsystem kan man väl aldrig väl, med undantag för Oberon kanske?

Why Bloat Is Still Software’s Biggest Vulnerability

A 2024 plea for lean software

spectrum.ieee.org

Karl Pettersson @karlpettersson.bsky.social · 5d

Yes, the update from 1/2 to 1/3 seems similar to the one from 1/2 (would be right if you find a Tuesday boy at random and then ask about the other child) to 13/27.

Karl Pettersson @karlpettersson.bsky.social · 5d

You have:
Tuesday-born big brother + a little sister or little brother born any day
OR
Tuesday-born little brother + a big sister born any day or a big brother born any day except for Tuesday.

Sound relatively intutitive that probability for two brothers goes down (you must not double-count)?

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Karl Pettersson @karlpettersson.bsky.social · 5d

You have:
Tuesday-born big brother + a little sister or little brother born any day
OR
Tuesday-born little brother + a big sister born any day or a big brother born any day except for Tuesday.

Sound relatively intutitive that probability for two brothers goes down (you must not double-count)?

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Karl Pettersson @karlpettersson.bsky.social · 5d

Har När Var Hur 1980, där det står om detta.

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Karl Pettersson @karlpettersson.bsky.social · 5d

Another interpretation would be that you die at an age with life expectancy >0, so everyone dies prematurely (or perhaps no one does, depending on reference population). It is discussed by Keyfitz and Caswell.

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