What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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LED lighting undermines visual performance unless supplemented by wider spectra

Link: nature.com/articles/s41598-026
Discussion: news.ycombinator.com/item?id=4

LED lighting (350-650nm) undermines human visual performance unless supplemented by wider spectra (400-1500nm+) like daylight - Scientific Reports

Life evolved under broad spectrum sunlight, from ultraviolet to infrared (300–2500 nm). This spectrally balanced light sculpted life’s physiology and metabolism. But modern lighting has recently become dominated by restricted spectrum light emitting diodes (350–650 nm LEDs). Absence of longer wavelengths in LEDs and their short wavelength dominance impacts physiology, undermining normal mitochondrial respiration that regulates metabolism, disease and ageing. Mitochondria are light sensitive. The 420–450 nm dominant in LEDs suppresses respiration while deep red/infrared (670–900 nm) increases respiration in aging and some diseases including in blood sugar regulation. Here we supplement LED light with broad spectrum lighting (400–1500 nm+) for 2 weeks and test colour contrast sensitivity. We show significant improvement in this metric that last for 2 months after the supplemental lighting is removed. Mitochondria communicate across the body with systemic impacts following regional light exposure. This likely involves shifting patterns of serum cytokine expression, raising the possibility of wider negative impacts of LEDs on human health particularly, in the elderly or in the clinical environment where individuals are debilitated. Changing the lighting in these environments could be a highly economic route to improved public health.

www.nature.com · Nature

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[아침을 여는 한겨레] 2026년 1월 26일 월요일 이혜훈 지명 철회 무산된 통합 인사 👉 hani.com/u/MTA3NDY ‘민주진영 정치적 대부’ 이해찬 전 총리 별세 👉 hani.com/u/MTA3NDc 미 새 국방전략 “한국이 북한 억제 1차적 책임” 👉 hani.com/u/MTA3NDg 이 대통령 하루에 부동산 글 4차례나 다주택자 양도세 중과·보유세 강화 뜻 👉 hani.com/u/MTA3NDk

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News outlets really gotta stop qualifying people who get killed by the state.

“No criminal record” is irrelevant, because the state shouldn’t be killing *anyone.* Specifying this indicates that the writer—and to the reader—that this detail makes a difference. It does not.

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part of this is like, conservatives projecting; part of this is conservatives unable to imagine politics without money; and part of this is dudes who are so out of touch with feminized labor that they think children's birthday parties exist as a spontaneous act of parthogenesis

RE: https://bsky.app/profile/did:plc:zn5wzyeehxerl4ft7m7vzrs4/post/3mdbmxbtd322x

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Via Keith Edwards
@keithedwards on Threads

This is amazing.

MN's National Guard has arrived and are distributing donuts, coffee and hot chocolate to anti-ice protestors.

They're wearing reflective vests so protestors know they're not Trump Troopers

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More people in my circles have expressed interest in switching to and asking me if it's okay to ask me for help, which of course is a resounding yes

And while I'm personally delighted people are considering the switch, I feel especially honored they're choosing me to be their guide 🥰

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part of this is like, conservatives projecting; part of this is conservatives unable to imagine politics without money; and part of this is dudes who are so out of touch with feminized labor that they think children's birthday parties exist as a spontaneous act of parthogenesis

RE: https://bsky.app/profile/did:plc:zn5wzyeehxerl4ft7m7vzrs4/post/3mdbmxbtd322x

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「30代の最年少首長!」とかもてはやされがちだけど、元の職場でちゃんとやれてたらそんな若さで政治家、それも議員ならともかく行政職のトップになんかなろうと考えるかね、としか思わなくなっている。大学出て10年ちょいとかそんなもんまだぜんぜんヒヨっ子の部類でしょ。
特に自治体なんかたくさんの人間に納得ずくで動いてもらわなきゃならんのだから、そのトップにはそれなりの貫目が必要ですよやっぱり。トッショリはトッショリでアレだけど、「若すぎる」というのはもはや個人的にはマイナスの要素にしか思われない

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「30代の最年少首長!」とかもてはやされがちだけど、元の職場でちゃんとやれてたらそんな若さで政治家、それも議員ならともかく行政職のトップになんかなろうと考えるかね、としか思わなくなっている。大学出て10年ちょいとかそんなもんまだぜんぜんヒヨっ子の部類でしょ。
特に自治体なんかたくさんの人間に納得ずくで動いてもらわなきゃならんのだから、そのトップにはそれなりの貫目が必要ですよやっぱり。トッショリはトッショリでアレだけど、「若すぎる」というのはもはや個人的にはマイナスの要素にしか思われない

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I'm not following new @Mastodon features closely. It looks like this is a relatively new feature: suggestions of accounts to follow. I find it quite good in principle. Unfortunately, it appears to be broken in languages: the suggestions go from right to left, but the arrow that is supposed to allow scrolling to see more suggested accounts only points to the right, so it can't be used. How do I even report it?

@legoktmKunal Mehta @LucasWerkmeister @evanEvan Prodromou perhaps you know?

@MastodonEngineering

A screenshot of the Mastodon website with Hebrew user interface.
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USPol, subtoot, mention of death

Hey, so, can we maybe not post pictures of a murder completely unCW:ed. Yes, it is important to bring attention to the fact that the gestapo is murdering people, I fully agree, but I, as well as many others, don't want to shut out the world, but also can't easily deal with real death happening on our screens without warning.

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컨텍스트 창 크기가 20만 토큰이라는 건 (1대 1로 비교할 수 있는 건 아니고 경우와 사람마다 다르겠지만) 인간 기준으로 어느 정도 느낌을 가지는 크기인지 궁금하다. 한 사람이 가지는 컨텍스트 창은 당연히 무한할 수는 없고 생각보다 그렇게 크지 않을 수도 있다는 얘기도 있다. 예를 들면 개발자도 일할 때 이런 저런 문의와 과제가 쌓이면 “컨텍스트 스위칭” 비용에 대한 불만을 토하기도 하니까.

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고단백·저당…작년 표준국어대사전에 416개 표제어 추가
(서울=연합뉴스) 김기훈 기자 = 국립국어원은 2025년 한 해 동안 표준국어대사전에 416개 표제어를 추가했다고 26일 밝혔다.
yna.co.kr/view/AKR202601260267

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多分日本でいちばん成功している教育は「もの言う少数派は敵」「平等は危険思想」という思想教育だと思うんだよな
政府を批判する文章載せた出版物を発行停止にしたり集会を禁止したりする法律、明治時代からあったからな
それ以前から村の窮状を訴え出たら死罪とか、上位下達に従わない人への弾圧とともに進んできた国なんよ

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아어떡해 나 대학병원 안에서 계속 걸어자니면 덥겟지??? 싶어서 어차피 겉옷 안은 안보일거라 생각하고 옷에 '살아남은 것은 강하다는 증거' 적힌 티셔츠 입고 갔는데ㅣ 심전도랑 이것저것 검사잇어서 겉옷 벗어야한대 여기 환자들 수두룩 빽빽인데 아 ㄲ ㄲ ㄱ ㄱ ㄱ ㅋ ㅋ ㅋ ㅋㄱ ㅋ ㅋ ㄱ ㄱ

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