ALERT In hours starting 12 PM ET Fri night / 9 AM Karachi time, Omar Sheikh + 3 men convicted in Danny Pearl's murder will try to walk out of jail. Ruth + @YudaPearl ask the govt of Pakistan to stop this miscarriage of #JusticeforDanielPearl. cc: @imrankhanpti @realdonaldtrump
https://t.co/KBNbhsZ533
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A quick thread on the new variant, pulling together information from news sources, twitter, genomic databases, and word from well-placed peers.
The new variant in the UK consists of several mutations in the spike protein, including ΔH69/ΔV70 deletions & other receptor binding domain mutations such as N501Y.
The variant is described here in this pre-print from @GuptaR_lab.
https://t.co/ui2U1r1ANA
The ΔH69/ΔV70 variant continues to increase quite rapidly as a proportion of overall positives (roughly doubling in the last 2 to three days), and is apparently now the dominant strain in test positives in some regions.
Extensive efforts have gone into enhanced surveillance for the ΔH69/ΔV70 deletion with and without RBD mutations, and it is good that we are aware of this.
There is a need for calm and rational thinking, and more evidence is needed.
But the early data is certainly concerning
Cabinet has been summoned for call at lunchtime. Lots of concern about new data on virus in parts of England, feels like fast moving situation. https://t.co/308YsJEVGw
— Nick Eardley (@nickeardleybbc) December 19, 2020
The new variant in the UK consists of several mutations in the spike protein, including ΔH69/ΔV70 deletions & other receptor binding domain mutations such as N501Y.
The variant is described here in this pre-print from @GuptaR_lab.
https://t.co/ui2U1r1ANA
The ΔH69/ΔV70 variant continues to increase quite rapidly as a proportion of overall positives (roughly doubling in the last 2 to three days), and is apparently now the dominant strain in test positives in some regions.
Extensive efforts have gone into enhanced surveillance for the ΔH69/ΔV70 deletion with and without RBD mutations, and it is good that we are aware of this.
There is a need for calm and rational thinking, and more evidence is needed.
But the early data is certainly concerning
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A brief analysis and comparison of the CSS for Twitter's PWA vs Twitter's legacy desktop website. The difference is dramatic and I'll touch on some reasons why.
Legacy site *downloads* ~630 KB CSS per theme and writing direction.
6,769 rules
9,252 selectors
16.7k declarations
3,370 unique declarations
44 media queries
36 unique colors
50 unique background colors
46 unique font sizes
39 unique z-indices
https://t.co/qyl4Bt1i5x
PWA *incrementally generates* ~30 KB CSS that handles all themes and writing directions.
735 rules
740 selectors
757 declarations
730 unique declarations
0 media queries
11 unique colors
32 unique background colors
15 unique font sizes
7 unique z-indices
https://t.co/w7oNG5KUkJ
The legacy site's CSS is what happens when hundreds of people directly write CSS over many years. Specificity wars, redundancy, a house of cards that can't be fixed. The result is extremely inefficient and error-prone styling that punishes users and developers.
The PWA's CSS is generated on-demand by a JS framework that manages styles and outputs "atomic CSS". The framework can enforce strict constraints and perform optimisations, which is why the CSS is so much smaller and safer. Style conflicts and unbounded CSS growth are avoided.
Legacy site *downloads* ~630 KB CSS per theme and writing direction.
6,769 rules
9,252 selectors
16.7k declarations
3,370 unique declarations
44 media queries
36 unique colors
50 unique background colors
46 unique font sizes
39 unique z-indices
https://t.co/qyl4Bt1i5x
PWA *incrementally generates* ~30 KB CSS that handles all themes and writing directions.
735 rules
740 selectors
757 declarations
730 unique declarations
0 media queries
11 unique colors
32 unique background colors
15 unique font sizes
7 unique z-indices
https://t.co/w7oNG5KUkJ
The legacy site's CSS is what happens when hundreds of people directly write CSS over many years. Specificity wars, redundancy, a house of cards that can't be fixed. The result is extremely inefficient and error-prone styling that punishes users and developers.
The PWA's CSS is generated on-demand by a JS framework that manages styles and outputs "atomic CSS". The framework can enforce strict constraints and perform optimisations, which is why the CSS is so much smaller and safer. Style conflicts and unbounded CSS growth are avoided.