Category Archives: Uncategorized

Links for 2020-09-23

Feh/nocache minimize filesystem caching effects: The nocache tool tries to minimize the effect an application has on the Linux file system cache. This is done by intercepting the open and close system calls and calling posix_fadvise() with the POSIX_FADV_DONTNEED parameter. Because the library remembers which pages (ie., 4K-blocks of the file) were already in file […]

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Links for 2020-09-21

Sweden has the smallest average household size in Europe This is an interesting factor regarding COVID-19 transmission — the majority of Swedish households have a single occupant, unlike everywhere else in Europe (twice the rate of Ireland, for instance). (tags: covid-19 sweden households europe statistics eu housing) Raspberry Pi USB Boot – UASP, TRIM, and […]

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Links for 2020-09-17

Monoclonal antibodies Informative thread from Michael Mina – ‘Monoclonal antibodies (mAbs) have been quietly built and tested for months now. IMO mAbs have some of the best chances of offering powerful treatments for COVID-19’ (tags: twitter threads mabs monoclonal-antibodies immunity covid-19) Andrew Flood on Michael Levitt Levitt’s output is being quoted by COVID contrarians in […]

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Links for 2020-09-16

The Plot Against George Soros ‘Anti-Soros material is a globalized, freely available, and adaptable open-source weapon. Birnbaum said it was the common denominator of the nationalist movement.’ (tags: politics hungary george-soros lies antisemitism propaganda misinformation)

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Links for 2020-09-15

Rolling the COVID Dice in Ireland On the Probability of SARS-CoV2 Infection in Ireland & the Benefits of Mitigation: ‘In Ireland today, we have a certain chance of becoming infected with the coronavirus over the course of the next week, unless we take precautions. We can roll this many sided dice once a week for […]

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Links for 2020-09-14

gambiarra – Google Search this is incredible — the word roughly translates as “improvised fixes”, “hacks” or “McGyverism”, that kind of thing. fantastic Image Search (tags: images gambiarra fixes thereifixedit mcgyver hacks kludges funny brazil) Cillian De Gascun on Twitter: “A short thread on PCR #SARSCoV2” Decent thread on Irish RT-PCR COVID-19 testing. tl;dr: Ct […]

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Links for 2020-09-11

Benchspace PPE Project Report report from Benchspace on their open source PPE project during March and April. it’s great stuff. 50,000 face shields printed! (tags: face-shields covid-19 volunteers open-source 3d-printing ppe benchspace) America Is Trapped in a Pandemic Spiral – The Atlantic ‘Many Americans trusted intuition to help guide them through this disaster. They grabbed […]

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Links for 2020-09-09

FactFind: No, it’s not correct to say just 100 people have died from Covid-19 in Ireland The Journal’s fact checking team are knocking it out of the park once again — great debunking of Ben Gilroy’s latest viral claims regarding “pre-existing conditions” and COVID-19 (tags: covid-19 medicine ben-gilroy conspiracies qanon the-journal fact-checking debunking) QAnon is […]

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Links for 2020-09-08

illustration of how a rise in SARS-CoV-2 positivity in younger groups can soon become a rise in older groups via Vincent Glad, on Twitter: the positivity rate stratified by age, in the Marseilles region (tags: testing covid-19 age epidemiology dataviz statistics marseilles france) The timing of COVID-19 transmission new preprint on medRxiv: We examined the […]

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Links for 2020-09-07

Starbucks Cafe’s Covid Outbreak Spared Employees Who Wore Masks – Bloomberg This was pretty striking: ‘A person sitting under an air conditioner infected 27 others with coronavirus at a Starbucks cafe in South Korea, but none of the employees, who were wearing masks, got the virus.’ Another great case writeup from South Korea (Via Andrew […]

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Links for 2020-09-06

How To Grow Trees A complete guide via the Native Woodland Trust for planting trees in your garden, hedge, etc. (tags: gardening woods woodlands trees planting) Good thread on the current state of play re COVID-19 in Ireland and the rest of Europe Ewan Birney on Twitter: “Like I suspect a number of scientists I’ve […]

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Links for 2020-09-05

Death, sex, superstition and fear: the hawthorn tree in Ireland These trees that grew of their own accord, unplanted by human hands, are those most regarded with fear and superstition. These are thought of as faery trees, associated with those unseen beings from the other world.  They are believed to mark the places where the […]

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Links for 2020-09-04

Seroprevalence of SARS-CoV-2 antibodies in children – A prospective multicentre cohort study. | medRxiv via DrZoeHyde: ‘Important pre-print study (interpret cautiously) of 992 UK children showing 6.9% had #SARSCoV2 antibodies, suggesting they are at similar risk of infection as adults, & that young and older children are similarly susceptible. 50% were asymptomatic.’ ‘Half of the […]

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Links for 2020-09-02

Community Outbreak Investigation of SARS-CoV-2 Transmission Among Bus Riders in Eastern China | Global Health | JAMA Internal Medicine | JAMA Network One person on a bus infected 23 others, probably through the air during a 100-minute trip. A/C was on with recirculation. Infected people were randomly scattered throughout the bus, not just near the […]

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Links for 2020-08-31

FAQs on Protecting Yourself from Aerosol Transmission of COVID-19 This is pretty extensive (tags: faqs covid-19 aerosols transmission)

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Links for 2020-08-27

Keeping CALM: When Distributed Consistency Is Easy | September 2020 | Communications of the ACM ‘Consistency As Logical Monotonicity (CALM): A problem has a consistent, coordination-free distributed implementation if and only if it is monotonic.’ (tags: calm computer-science consistency distributed-systems bloom distcomp)

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Links for 2020-08-26

Two metres or one: what is the evidence for physical distancing in covid-19? | The BMJ Key messages: Current rules on safe physical distancing are based on outdated science Distribution of viral particles is affected by numerous factors, including air flow Evidence suggests SARS-CoV-2 may travel more than 2 m through activities such as coughing […]

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Links for 2020-08-24

Interchange fee TIL about credit card “interchange fees” — an additional fee levied by credit card companies and banks, roughly 3%, mainly in the US (the EU regulations cap it at 0.3%). ‘Imagine a consumer making a $100 purchase with a credit card. For that $100 item, the retailer would get approximately $98. The remaining […]

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Links for 2020-08-20

Irish coins designed by Percy Metcalfe the coins used in Ireland between 1928 and 2000 (when the Euro became standard here). Beautiful, classic designs (tags: coins history ireland numismatism design art money) Asymptomatic SARS-CoV-2 infections: a living systematic review and meta-analysis | medRxiv ‘The overall estimate of the proportion of people who become infected with […]

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Links for 2020-08-17

How to Test Every American for COVID-19, Every Day – The Atlantic Good write-up on Dr. Michael Mina’s testing plan, using quick, cheap testing strips for daily COVID-19 testing (tags: testing covid-19 coronavirus michael-mina reopening) A-Levels: The Model is not the Student Solid description of the many errors in the UK’s attempt to estimate correct […]

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Links for 2020-08-14

Air pollution is much worse than we thought. Climate change is far from the only problem with fossil fuels. – Vox “Over the next 50 years, keeping to the 2°C pathway would prevent roughly 4.5 million premature deaths, about 3.5 million hospitalizations and emergency room visits, and approximately 300 million lost workdays in the US.” […]

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Links for 2020-08-13

How to use ventilation and air filtration to prevent the spread of coronavirus indoors Given that COVID-19 spreads via aerosols in closed rooms like classrooms, use a CO2 monitor to check levels of ventilation; open windows; or use an air purifier. (tags: covid-19 aerosols air air-quality co2 air-purifiers schools)

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Links for 2020-08-12

Covid 19 coronavirus: Freight investigated as possible source of community transmission – NZ Herald Interesting theory in NZ — their current outbreak may have been caused by surface transmission on food shipped from China: Surfaces in a coolstore workplace are being tested to see whether international freight may have been the origin of the new […]

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Links for 2020-08-11

Objectives for COVID-19 testing in school settings ‘New ECDC guidance on testing for COVID-19 in schools says anyone who is in a “closed environment, such as a classroom, for more than 15 minutes” with a confirmed case is considered a close contact and should be tested’ (tags: ecdc covid-19 infection transmission airborne aerosols schools kids) […]

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Links for 2020-08-10

The effect of school closures and reopening strategies on COVID-19 infection dynamics in the San Francisco Bay Area: a cross-sectional survey and modeling analysis | medRxiv New preprint, modelling COVID-19 transmission in Bay Area schools. Large-scale school closures have been implemented worldwide to curb the spread of COVID-19. However, the impact of school closures and […]

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Links for 2020-08-09

Building dashboards for operational visibility | Amazon Builders’ Library Fantastic set of tips for metric dashboard construction, from John O’Shea (tags: dashboards aws monitoring metrics alerts amazon)

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Links for 2020-08-04

Nisreen A Alwan: What exactly is mild covid-19?  What is now becoming clear is that mortality is not the only adverse outcome of this infection and our surveillance systems must keep up and reflect that. I am advocating for precise case definitions for covid-19 morbidity that reflect the degree of severity of infection and allow […]

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Links for 2020-07-31

Why Aren’t We Talking More About Ventilation? – The Atlantic Zeynep wins again: It seems baffling that despite mounting evidence of its importance, we are stuck practicing hygiene theater — constantly deep cleaning everything — while not noticing the air we breathe. How is it that six months into a respiratory pandemic, we still have […]

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Links for 2020-07-30

Comparison of viral levels in individuals with or without symptoms at time of COVID-19 testing among 32,480 residents and staff of nursing homes and assisted living facilities in Massachusetts. | medRxiv In aggregate, the distributions of Cts for viral probes used in the qRT-PCR assay were very similar, with a statistically but not meaningfully different […]

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Links for 2020-07-29

US Spring school closures tied to drastic decrease in Covid-19 cases, deaths in model Their projection found that, if schools had stayed open, there could have been roughly 424 more coronavirus infections and 13 more deaths per 100,000 residents over the course of 26 days. Extrapolate that to the American population, and the country might […]

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Links for 2020-07-28

School openings across globe suggest ways to keep coronavirus at bay, despite outbreaks | Science | AAAS When Science looked at reopening strategies from South Africa to Finland to Israel, some encouraging patterns emerged. Together, they suggest a combination of keeping student groups small and requiring masks and some social distancing helps keep schools and […]

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Links for 2020-07-27

AWS User Data is Being Stored, Used Outside User’s Chosen Regions Wow, this is staggeringly inappropriate usage. Bad move, Amazon! [AWS] is using customers’ “AI content” for its own product development purposes. It also reserves the right in its small print to store this material outside the geographic regions that AWS customers have explicitly selected. […]

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Links for 2020-07-26

Sputum testing provides higher rate of COVID-19 detection | EurekAlert! Science News Li and his colleagues scoured the literature — both preprints and published papers — for studies that assessed at least two respiratory sampling sites using an NP swab, oropharyngeal swab or sputum. From more than 1,000 studies, they identified 11 that met their […]

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Links for 2020-07-25

COVID Dogs Scent dog identification of samples from COVID-19 patients – a pilot study, in BMC Infectious Diseases: The dogs were able to discriminate between samples of infected (positive) and non-infected (negative) individuals with average diagnostic sensitivity of 82.63% (95% confidence interval [CI]: 82.02–83.24%) and specificity of 96.35% (95% CI: 96.31–96.39%). During the presentation of […]

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Links for 2020-07-23

Top Scientists Just Ruled Out Best-Case Global Warming Scenarios – Bloomberg “A group of 25 leading scientists now conclude that catastrophic warming is almost inevitable if emissions continue at their current rate.” (tags: global-warming climate-change future climate science) 20 Questions to Ask before Sending your Kids Back to School – Schools For Health An excellent […]

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Links for 2020-07-21

Persistent Symptoms in Patients After Acute COVID-19 | Critical Care Medicine | JAMA | JAMA Network ‘This study found that in patients who had recovered from COVID-19, 87.4% reported persistence of at least 1 symptom, particularly fatigue and dyspnea.’ Two months after ‘recovery’! (via Megan Ranney MD, https://twitter.com/meganranney/status/1285354398265282563) (tags: covid-19 recovery medicine fatigue health via:meganranney) […]

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Links for 2020-07-20

Cancel Culture and the Problem of Woke Capitalism – The Atlantic ‘How Capitalism Drives Cancel Culture: Beware splashy corporate gestures when they leave existing power structures intact.’ (tags: cancel-culture cancelling capitalism society) The inside story of how the UK government failed to develop a contact-tracing app A classic Tory fuckup. Spoofing, over-promising, a behind-the-scenes desire […]

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Links for 2020-07-17

Turkey Now Has Swarming Suicide Drones It Could Export – The Drive Well, this is pretty scary — swarming autonomous kamikaze drones are actively in production right now: It seems very possible that, in addition to providing these improved Kargu [drones] to the Turkish armed forces, STM could also seek to export them, proliferating this […]

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Links for 2020-07-16

‘Only those with plastic visors were infected’: Swiss government warns against face shields – The Local Via Zeynep Tufekci: ‘A study of an outbreak in Switzerland found that only those with plastic face-shields were infected, and everyone wearing masks was protected. Face shields may still help with source control, but masks may well also be […]

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Links for 2020-07-15

Nice heatmap dataviz of Florida COVID-19 cases, over time, by age bracket Be?v?a?n?d on Twitter: “I love this heatmap?? It represents over 100,000 individual datapoints. These are Florida COVID-19 cases, over time, by age bracket. I published open-source code to make it: https://t.co/8USY29mDDn The recent case surge is driven by 20-24-year-old Floridians. 1/N https://t.co/Pw2p9xTLaq” / […]

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