1. I find it remarkable that some medics and scientists aren’t raising their voices to make children as safe as possible. The comment about children being less infectious than adults is unsupported by evidence.

1. THE PLAN

We see countries like China & New Zealand succeed by implementing border controls and wonder why our government didn’t do the same. Unfortunately, it’s been following the 2011 influenza pandemic plan, which says...

2. China & New Zealand have international travel (limited in the case of New Zealand) and freight, and rather than delay their peaks, their border controls have helped keep cases to a minimum. Border controls might not work in a flu pandemic, but they worked for #COVID19.

3. Countries that have done well against #COVID19 have high adherence to mask wearing. The pandemic plan tells us the British people won’t bother wearing masks over time so let’s no bother asking them to, eh.

4. Mass super spreading events have been shown to play a significant role in the transmission of #COVID19.

But the pandemic plan tells us they don’t play a role (perhaps the source of Jenny Harries’ comments about Cheltenham?) and therefore the government will not restrict them

5. I call this the white flag clause. Surrender was built into the assumptions behind our pandemic response. The success of other countries has proved this clause completely wrong.

1. Last NYE was a quiet one for @AmyMcLellan2 & I, after a busy year writing and helping @DavidHHeadley and @LizzieCurle organise @CapitalCrime1

Someone I follow on Twitter shared this story, and we jokingly said we hoped it wouldn’t be another SARS.

2. A few days later, after watching social media footage coming out of Wuhan, I went for a meeting to plan Capital Crime 2021, and said it was likely we’d have to cancel the festival because of the emerging pandemic. My partners in crime looked at me as though I was unhinged.

3. As the situation worsened, I reconnected with people I knew from my previous life working as a consultant to the medical industry, and it became clear we were witnessing the start of a pandemic.

4. Knowing something about the history of pandemics, I was aware that early intervention, and quick and decisive action were essential. I was asked to write a report for Matt Hancock on the risks of reinfection and long-term ill health caused by coronaviruses.

5. Knowing the public health and economic costs of a pandemic, I joined people like @DrEricDing trying to raise the alarm in February, calling for decisive government action. In the report sent to Hancock, I recommended a 4-week precautionary border closure and lockdown...

Some 1300 years ago in Karnataka there lived a genius who wrote "Gaṇitasārasan̄graha" (which is earliest text devoted entirely to mathematics)

The man who's work later borrowed by Arabs & Europeans

Thread on "Mahāvīracharya" astounding but forgotten legacy

Mahāvirachārya was patronised by rashtrakuta king amoghavarasha

His book"Gaṇita-sāra-saṅgraha"is earliest text devoted entirely to Mathematics

He has described the currently used method of calculating(LCM)of given numbers.The same method was used in Europe later in1500CE

Mahavira wrote "Gaṇita-sāra-saṅgraha" (GSS) in 8th century CE which contains some 1100 slokās & contains elementary topics in arithmetic , algebra , geometry , measurements , logic , number theory , dynamical systems etc

A sheer mathematical genius

He was devout jain
His magnum opus "Ganit sara sangraha " start with a sloka bowing to the glory of the jinas

"संख्याज्ञानप्रदिपेन जैनेंद्रन महत्वेशा,
प्रकाशितम जगतसर्व येन तम प्रणमाम्यहम"

He also praised his predecessor aryabhata , brahmagupta & other greats in his works

The importance & popularity of "Gaṇita-sāra-saṅgraha"was so huge that it enjoyed statues of most important textbook of mathematics in South Indian for over 3 centuries

A large no of manuscript copies of
"Gaṇita-sāra-saṅgraha"whr discovered in Kerala shows it's popularity

Announcing the 2021 Summer Institutes in Computational Social Science. #SICSS is for grad students, post-docs & beginning faculty. Free for participants. @chris_bail and I are happy to tell you about all 20 locations. https://t.co/wolhtZIMc5 [thread]

SICSS brings together social scientists & data scientists interested in computational social science for 1-2 week events with intensive study & collaborative research.

Topics covered include automated text analysis, web scraping, non-probability sampling, digital experiments, ethics & much more.

All education materials created for SICSS are available open-source so that people who are unable to participate can still learn. You can also use them in your teaching. Here are materials from previous years:

Because of COVID, all SICSS locations will be online only in 2021.

The calamoid palms 🌴 have over 500 species spread across the world, but their higher-level relationships were a bit of a mystery. Until now.

Out today in #MolecularPhylogeneticsAndEvolution:

A robust phylogenomic framework for the calamoid palms https://t.co/JiCbSUlheH

1/10

First some background info, so that you know what we are talking about:

Calamoid palms look a bit like snakes 🐍 (don't they!?!), because their fruits are covered in overlapping scales. And with their often fierce spines, they are equally fearsome. 😱

2/10

They are classified into 17 genera, 10 subtribes and 3 tribes. They have an amazing variety of growth forms, from stemless to climbing to tree habit. 🌱🌴

3/10

But as I said, their relationships have been a bit of a mystery. Here's the varying relationships previous studies found over the last 20 years.

4/10

We tackled this mystery with a phylogenomic approach: we sampled almost a thousand genes (a hundred times more than previous studies!) of 75 species representing all calamoid tribes, subtribes and genera.

The resulting data matrix is pretty massive...

5/10

Heres the story of how I volunteered to be infected with 50 parasitic worms (hookworm) for a year as part of a research study. Check out this thread & follow me for more #parasite & marine biology content [t]
#ScienceTwitter
imgs: https://t.co/hH5YsfS0ay https://t.co/kVurE6BbTS

1st some background on the parasites I got. Hookworms are blood-feeding nematodes that live in the intestine of mammals including cats, dogs & humans. ~500 million people are infected with hookworm, mostly in tropical and subtropical areas including the southern USA

Infection with many worms (100+) can cause anemia, which is most problematic in kids, pregnant women, and the elderly. This clinical study was launched to try to develop a vaccine against hookworms to prevent infection

People become infected when baby worms living in the soil penetrate their skin. Baby worms hatch from eggs that infected people poop out. Where plumbing is scarce, poor waste disposal is a common source of heavy infections (100s to 1,000s of worms)

I volunteered to be vaccinated with an experimental hookworm vaccine (I was also paid). After vaccination, the vaccine (or placebo idk) was tested by infecting me with 50 hookworms (Necator americanus) that penetrated my skin from a patch of gauze I wore on my wrist for 1 hour