#duration — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #duration, aggregated by home.social.
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Shorter sleep in infancy tied to developmental delay risk in Japan's largest birth cohort
Follow @1ban_news for daily coverage.
https://1ban.news/sleep-duration-child-development-jecs-2026/
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Shorter sleep in infancy tied to developmental delay risk in Japan's largest birth cohort
Follow @1ban_news for daily coverage.
https://1ban.news/sleep-duration-child-development-jecs-2026/
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Longer sleep duration genetically linked to lower epilepsy risk via inhibitory synaptic dysfunction
Stay curious — follow @1ban_news.
https://1ban.news/sleep-duration-epilepsy-risk-cacna1a-li-2026/
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Longer sleep duration genetically linked to lower epilepsy risk via inhibitory synaptic dysfunction
Stay curious — follow @1ban_news.
https://1ban.news/sleep-duration-epilepsy-risk-cacna1a-li-2026/
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Device-Measured Sleep Duration Tied More Strongly to Health Outcomes Than Self-Reported Sleep, Large Study Finds
https://1ban.news/sleep-duration-health-outcomes-self-report-device-2026/
#1ban #sleep #duration #health #outcomes #neuroscience -
Device-Measured Sleep Duration Tied More Strongly to Health Outcomes Than Self-Reported Sleep, Large Study Finds
https://1ban.news/sleep-duration-health-outcomes-self-report-device-2026/
#1ban #sleep #duration #health #outcomes #neuroscience -
Hi Theo,
thanks for your replies.
First of all, however, I'd like you to know that I managed to get a copy of your Austr. Phys. 56 (6), 2019, thanks to your website and the excellent archive of the AIP.Interesting article! While your repeated attempts to "save [parts of] that oft-used [abominable] phrase" didn't succeed, I was very glad that you -- almost in passing -- struck upon **the** **appropriate** phrase:
> _»We know that it is you [circled Y in Fig. 1] who measures the proper time, and hence the shorter time interval.«_
So the key/solution is: to refer to **duration**, certain clocks running **longer** (or **shorter**) than certain other clocks;
instead of referring to clock rate (frequency), i.e. certain clocks running faster (or slower) than certain others.This holds for #GeneralRelativity just as well.
All that inappropriate referring to clock rate has been nothing but a "red hering" from the outset (Einstein Ann. Phys. 17, 891 (1905))!
In terminology I prefer, I teach the Fig.1-applicable appropriate #SpecialRelativity phrase as
"The duration of Y, from having met/passed R until having met/passed L,
is shorter, by factor √{ 1 - β^2 }, than
the duration of R, from having met/passed Y
until R's indication simultaneous to L's indication of having met/passed Y."p.s. For your kind consideration, here's "putting my money where my mouth is": https://scirate.com/arxiv/2605.21660
p.p.s. The notion #Duration may have been depreciated in #Relativity due to nonsense by the French philosopher H. Bergson. Instead, "duration" plainly is in the SI-second-def
p.p.p.s. I can mostly recommend tooting (!) by mathstodon: 1729 chars. + \(\LaTeX\) -- only "Markdown" still doesn't work!
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Hi Theo,
thanks for your replies.
First of all, however, I'd like you to know that I managed to get a copy of your Austr. Phys. 56 (6), 2019, thanks to your website and the excellent archive of the AIP.Interesting article! While your repeated attempts to "save [parts of] that oft-used [abominable] phrase" didn't succeed, I was very glad that you -- almost in passing -- struck upon **the** **appropriate** phrase:
> _»We know that it is you [circled Y in Fig. 1] who measures the proper time, and hence the shorter time interval.«_
So the key/solution is: to refer to **duration**, certain clocks running **longer** (or **shorter**) than certain other clocks;
instead of referring to clock rate (frequency), i.e. certain clocks running faster (or slower) than certain others.This holds for #GeneralRelativity just as well.
All that inappropriate referring to clock rate has been nothing but a "red hering" from the outset (Einstein Ann. Phys. 17, 891 (1905))!
In terminology I prefer, I teach the Fig.1-applicable appropriate #SpecialRelativity phrase as
"The duration of Y, from having met/passed R until having met/passed L,
is shorter, by factor √{ 1 - β^2 }, than
the duration of R, from having met/passed Y
until R's indication simultaneous to L's indication of having met/passed Y."p.s. For your kind consideration, here's "putting my money where my mouth is": https://scirate.com/arxiv/2605.21660
p.p.s. The notion #Duration may have been depreciated in #Relativity due to nonsense by the French philosopher H. Bergson. Instead, "duration" plainly is in the SI-second-def
p.p.p.s. I can mostly recommend tooting (!) by mathstodon: 1729 chars. + \(\LaTeX\) -- only "Markdown" still doesn't work!
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The #chances of finding a new #job decline sharply with the #duration of #unemployment. The probability of securing a new job falls from around 7 per cent per month at the outset to 4.5 per cent after a year of #unemployment. This is the finding of a new #RFBerlin Research Insight.
https://nachrichten.idw-online.de/2026/07/01/job-prospects-decline-sharply-with-the-duration-of-unemployment -
https://theconversation.com/ukraine-war-now-longer-than-the-first-world-war-the-similarities-are-unsettling-284864. "The #war in #Ukraine has now exceeded the first #world war in #duration. And while the #comparison between these two #conflicts is imperfect, it is becoming difficult to ignore."
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https://theconversation.com/ukraine-war-now-longer-than-the-first-world-war-the-similarities-are-unsettling-284864. "The #war in #Ukraine has now exceeded the first #world war in #duration. And while the #comparison between these two #conflicts is imperfect, it is becoming difficult to ignore."
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4 Desjardins: The #Treasurymarket still faces questions around #debt sustainability and a more price-sensitive buyer base. #Canada has benefited against this backdrop, as #investors appear to be treating #Canadian #public-sector #duration as a credible high-quality alternative to #Treasuries …
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1 Desjardins: Canada is moving up the ranks as active managers increasingly overweight the country in global fixed income portfolios. The shift appears to reflect demand for high-quality #public-sector #duration …🧵 #bonds #bondmarkets #GoCs
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How To Change Slider Revolution 7+ WordPress Plugin Duration in 2026? https://www.youtube.com/watch?v=Td5HcV1QhXw 🎬🔌🌐 #Duration #Guide #SliderRevolution #WordPress #Plugin
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How To Change Slider Revolution 7+ WordPress Plugin Duration in 2026? https://www.youtube.com/watch?v=Td5HcV1QhXw 🎬🔌🌐 #Duration #Guide #SliderRevolution #WordPress #Plugin
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“Each country has its own contributing political problems, but the uniformity of the shift out of long-term #bonds with high #duration makes clear that something broader is afoot.” #markets #bondmarkets www.bloomberg.com/opinion/news... 🎁📎
The Great Bond Car Wreck — in ... -
SpaceX Starship V3 Has Successful Static Fire
https://atlas.whatip.xyz/post.php?slug=spacex-starship-v3-has-successful-static-fire
<p>SpaceX had a successful static fire for the V3 Starship (starship 39)
#successful #starship #duration #spacex -
I use music and a ProTools example to illustrate the difference between duration and time. I even invoked the debate between Bergson and Einstein in 1922.
Time doesn't exist. It's merely a useful heuristic that humans use for social structure. Duration is more intrinsic. Physics has created a space-time map and confused it with the underlying terrain.
#philosophy #physics #time #duration #blog #podcast #Einstein #Bergson #debate #music #metaphor #social #ClaudeAI
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I use music and a ProTools example to illustrate the difference between duration and time. I even invoked the debate between Bergson and Einstein in 1922.
Time doesn't exist. It's merely a useful heuristic that humans use for social structure. Duration is more intrinsic. Physics has created a space-time map and confused it with the underlying terrain.
#philosophy #physics #time #duration #blog #podcast #Einstein #Bergson #debate #music #metaphor #social #ClaudeAI
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Duration and the Intervalic Imposition: Thinking about TIME and DURATION. Looking for #feedback
https://philosophics.blog/2026/04/01/duration-and-the-intervalic-imposition/?utm_source=masto&utm_medium=social
#philosophy #physics #time #duration #memory #bergson #kant #Heidegger #husserl #phenomenology #metaphysics #math #maps #blog #podcast #history #reading #writing #essay #comments -
Duration and the Intervalic Imposition: Thinking about TIME and DURATION. Looking for #feedback
https://philosophics.blog/2026/04/01/duration-and-the-intervalic-imposition/?utm_source=masto&utm_medium=social
#philosophy #physics #time #duration #memory #bergson #kant #Heidegger #husserl #phenomenology #metaphysics #math #maps #blog #podcast #history #reading #writing #essay #comments -
#Duration #perception involves multiple #brain regions, but how unimodal tuning across this network supports subjective timing remains unclear. This study shows that parietal, premotor, and caudal SMA encode distinct durations, whereas frontal regions encode categorical, mean‑centered durations aligned with behavioral boundaries, revealing a hierarchical cortical organization for visual time perception @PLOSBiology https://plos.io/4sObgRu
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#Duration #perception involves multiple #brain regions, but how unimodal tuning across this network supports subjective timing remains unclear. This study shows that parietal, premotor, and caudal SMA encode distinct durations, whereas frontal regions encode categorical, mean‑centered durations aligned with behavioral boundaries, revealing a hierarchical cortical organization for visual time perception @PLOSBiology https://plos.io/4sObgRu
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Detection And Spatial Modelling Of Trends In UK Rainfall Frequency
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https://doi.org/10.1080/02626667.2026.2622458 <-- shared paper
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#GIS #spatial #mapping #extremeweather #rainfall #pluvial #frequency #trends #nonstationarity #extremevalue #model #modeling #monitoring #UnitedKingdom #UK #Britian #England #Scotland #Wales #precipitation #spatialanalysis #spatiotemporal #drainage #monitoring #planning #resilience #naturalhazards #flooding #flood #water #hydrology # #sewerage #sewage #wastewater #waterways #pollution #spills #releases #stormwater #erosion #massmovement #landslides #engineeringgeology #risk #hazard #climatic #covariates #raingauges #maximums #duration #winter #NorthernEngland #NorthAtlanticOscillation #NAO #index #metrics #annualmaximum #AMAX #seasonalmaximum #SMAX #peaksoverthreshold #POT #statistics #geostatistics #MetOffice #weather #climate -
Detection And Spatial Modelling Of Trends In UK Rainfall Frequency
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https://doi.org/10.1080/02626667.2026.2622458 <-- shared paper
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#GIS #spatial #mapping #extremeweather #rainfall #pluvial #frequency #trends #nonstationarity #extremevalue #model #modeling #monitoring #UnitedKingdom #UK #Britian #England #Scotland #Wales #precipitation #spatialanalysis #spatiotemporal #drainage #monitoring #planning #resilience #naturalhazards #flooding #flood #water #hydrology # #sewerage #sewage #wastewater #waterways #pollution #spills #releases #stormwater #erosion #massmovement #landslides #engineeringgeology #risk #hazard #climatic #covariates #raingauges #maximums #duration #winter #NorthernEngland #NorthAtlanticOscillation #NAO #index #metrics #annualmaximum #AMAX #seasonalmaximum #SMAX #peaksoverthreshold #POT #statistics #geostatistics #MetOffice #weather #climate -
C. M. Lowery et al. (2026) discovered a quick #recovery of #marinelife after the #massextinction ~ 66 Ma ago. They calculated a new #calibration using the #biostratigraphic #marker (#Helium-3 from 6 K/Pg boundary sites) and dated the #duration until the recovery of the #foraminiferbiozone of 3.5 k.y. - 11.1 k.y. after the boundary, instead of former theses ∼30 k.y..
buy me a coffee
https://ko-fi.com/sfwirthRef
https://doi.org/10.1130/G53313.1© S.F. W, AI assisted #illustrations.
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C. M. Lowery et al. (2026) discovered a quick #recovery of #marinelife after the #massextinction ~ 66 Ma ago. They calculated a new #calibration using the #biostratigraphic #marker (#Helium-3 from 6 K/Pg boundary sites) and dated the #duration until the recovery of the #foraminiferbiozone of 3.5 k.y. - 11.1 k.y. after the boundary, instead of former theses ∼30 k.y..
buy me a coffee
https://ko-fi.com/sfwirthRef
https://doi.org/10.1130/G53313.1© S.F. W, AI assisted #illustrations.
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Oh cool : on a maintenant aussi un formateur de durée (#duration) dans l'objet d'internationalisation de #javascript :
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat
Le formateur de date est disponible lui depuis de nombreuses années.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat
À noter aussi que l'élément html <time> accepte les durées :
https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/time#usage_notes
En mêlant les deux on peut faire pas mal de trucs
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Oh cool : on a maintenant aussi un formateur de durée (#duration) dans l'objet d'internationalisation de #javascript :
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat
Le formateur de date est disponible lui depuis de nombreuses années.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat
À noter aussi que l'élément html <time> accepte les durées :
https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/time#usage_notes
En mêlant les deux on peut faire pas mal de trucs
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The success of most things depends upon knowing [well] how much time is needed to succeed.
[Les succès de la plupart des choses dépend de savoir combien il faut de temps pour réussir.]Charles-Lewis de Secondat, Baron de Montesquieu (1689-1755) French political philosopher
Pensées Diverses [Assorted Thoughts], # 1007 “General Maxims of Politics,” No. 15 (1720-1755) [tr. Clark (2012)]Sourcing, notes, other translations: wist.info/montesquieu/78594/
#quote #quotes #quotation #qotd #montesquieu #duration #expectations #success #timing
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https://www.alojapan.com/1226111/5-lesser-known-day-trips-from-tokyo-for-hikes-hot-springs-and-more/ 5 Lesser-Known Day Trips From Tokyo for Hikes, Hot Springs, and More #atami #Chichibu #duration #ForgetMountFuji #HotSpring #Japan #JapaneseYen #Kawagoe #KengoEnomoto #LesserKnownDayTrip #MountFuji #MountFujiTopics #MountFuji #price #Tokyo #tourist #town #trip #富士山 This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now. Have an account? Log in. Kengo Enomoto started posting Japan-focused t…
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Five Droughts That Changed History [visualisations]
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https://www.informationisbeautifulawards.com/showcase/7611-five-droughts-that-changed-history <-- shared article
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https://labs.waterdata.usgs.gov/visualizations/drought-timeline/index.html#/ <-- USGS visualization page
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https://doi.org/10.1002/joc.7904 <-- shared paper
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#USGS #Vizlab #droughts #water #hydrology #visualisation #award #stripswarm #chart #temporal #streamgage #opendata #onset #duration #swarmlayout #timeline #GIS #spatial #mapping #spatiotemporal
@USGS -
Five Droughts That Changed History [visualisations]
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https://www.informationisbeautifulawards.com/showcase/7611-five-droughts-that-changed-history <-- shared article
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https://labs.waterdata.usgs.gov/visualizations/drought-timeline/index.html#/ <-- USGS visualization page
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https://doi.org/10.1002/joc.7904 <-- shared paper
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#USGS #Vizlab #droughts #water #hydrology #visualisation #award #stripswarm #chart #temporal #streamgage #opendata #onset #duration #swarmlayout #timeline #GIS #spatial #mapping #spatiotemporal
@USGS -
Hmm, is
PT86400Sa valid ISO 8601 duration spanning a whole day?Or should I do all the calculations to turn it into
P1D? -
Myths about Cardio and Muscle Loss 🏃💪
Discussing these myths like “cardio causing muscle loss” is important because it clears up misconceptions, promotes evidence-based fitness practices.
❌ Cardio Does Not Directly Burn Muscle
✅ Cardio Can Complement Muscle Growth
✅ Duration and Intensity Matter
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@Webwasp Ecomate wrote Sep 26, 2024, 03:03 PM:
> <i> [...] Your head and feet age at different rates </i>Please define "age of a human head", to enable a definition of
"average #rate of aging of a certain human head, in the course of a certain trial" as ratio between- the change (generally: increase) of age of the head over the course of the trial, and
- the #duration (a.k.a. arclength of timeline) of the head from beginning to end of the trial.
How exactly would (for instance)
- number, thickness, color, elasticityy of the head (or beard) hair,
- dental and epidermal status,
- acuity of hearing, smell, sight
be accounted to derive an evaluation of "age of a human head" ??
(And, surely, "the rate at which your feet aged" is a quantity of profoundly different definition than "the rate at which your head aged";
quite apart from certain durations being possibly inequal --
such as the duration of your head, from its birth to its death,
in comparison to the duratioh of your feet, from their birth to their death.)> the Pound-Rebka experiment, demonstrating gravitational redshift.
Rather than being experimentally demonstrated, gravitational redshift is derived at the outset (from the equivalence principle). It can and should be used to experimentally compare emission frequency and received/absorbed frequency (at the resonance maximum, while emitter and absorber are separated):
\[ \frac{f_\text{resonance}}{f_\text{emission}} =
\text{Exp}[ ~ \frac{g ~ \Delta h}{c^2} ~]\times \sqrt{ 1 - (\beta_{\text{resonance}})^2 } \]What's experimentally demonstrated, if that's indeed found, is
\[ \frac{f_\text{resonance}}{f_\text{emission}} \approx 1. \]
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#Efficacy of late-onset #antiviral #treatment in immunocompromised hosts with persistent #SARS-CoV-2 infection, J Virol.: https://journals.asm.org/doi/full/10.1128/jvi.00905-24?af=R
These data indicate that late-onset DAA therapy significantly shortens #duration of persistent virus #replication in an immunocompromised host, which may have implications for clinical use of antiviral therapeutics to alleviate the risk of progression to severe disease in highly vulnerable patients.
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📊 Adapting Workouts for Different Fitness Levels 💪
Adapting workouts for different fitness levels is crucial to ensure safety, effectiveness, and progression.
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#workout #exercise #equipment #adapt #intensity #volume #duration #bodyweight #freeweights #strengthtraining #onlinecoach #onlinefitnesscoach
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[US] #FDA #Research #Agenda for 2024 Highly Pathogenic #H5N1 Avian #Influenza, https://www.fda.gov/media/179559/download?attachment
Investigating #temperature thresholds and #duration required to effectively neutralize #H5N1 HPAI virus is necessary to better understand #inactivation methods. FDA is working on multiple efforts to understand the effectiveness of #pasteurization and other inactivation methods.
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#Duration of #fever in #children infected with #influenza #H1N1pdm09, #H3N2 or B virus & treated with #baloxavir, #oseltamivir, #laninamivir, or #zanamivir in #Japan during the 2012–13 & 2019–20 seasons, Antiviral Res.: https://www.sciencedirect.com/science/article/pii/S0166354224001475?via%3Dihub
We compared fever duration between baloxavir- & 3 NAIs-treated groups. ...For influenza A, fever duration in baloxavir- & NAIs-treated groups was similar. For influenza B, fever duration was ∼15 h shorter in baloxavir-treated group.
