he wasn't even looking at me and he found me
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@viirulentscience
The mitochondria being the powerhouse of the cell is a fact which is often discussed on the internet. The Golgi apparatus, however, being the post office of the cell, has not gotten nearly as much recognition. This is in line with the years-long underfunding of the postal service, which provides a deeply important service to society yet does not get the recognition it deserves. In this essay I will
My 30th birthday was yesterday and this is accurate.
I’m so sorry y’all ...
Me in a few weeks :(
Journey to the Microcosmos: Tardigrades: Chubby, Misunderstood, & Not Immortal
Images originally captured by Jam’s Germs
Thank you @airyearthgirl for inspiring me to gif these amazing lines
Tardigrades are just the best.
The Housemaid Who Discovered Stars
In the 1870s, the Harvard College Observatory director was frustrated with his staff, and would often say “My Scottish maid could do better!” When he hired her officially in 1879, Williamina Fleming proved he had been right all along.
She spent two years doing astronomical clerical work, then in 1881 Pickering invited Fleming to formally join the Harvard Collage Observatory and taught her how to analyze stellar spectra. She became one of the founding members of the Harvard Computers, an all-women group of human computers hired by Pickering to compute mathematical classifications and edit the observatory’s publications.
Williamina ran an astronomy team for decades, publishing a classification system of tens of thousands of stars, discovering a total of 59 gaseous nebulae, over 310 variable stars, and 10 novae. One of her most famous discoveries (among astronomers, anyways) was the Horsehead Nebula in 1888.
How do tests for #coronavirus work? This graphic takes a look at how current tests diagnose #COVID19: https://ift.tt/2QrFY2z https://ift.tt/2WtSVwx
next door neighbor: “so i have a question that’s more of a comment...”
Each square represents an individual:
⬜ uninfected but susceptible to infection
🟨 infected in the latent period and not yet infectious
🟥 infected and infectious
⬛ deceased or recovered
🟦 isolated by community screening policies
Daniel Cooney, Vincent Wong, and Yaneer Bar-Yam, Beyond contact tracing: Community-based early detection for Ebola response, PLoS Currents Outbreaks (May 19, 2016). [PDF, arXiv]
Via New England Complex Systems Institute
One of the more interesting things to come out of the data on COVID from other countries is that those with higher testing rates, like South Korea, are showing a very different picture of infection rates by age than those, like Italy, who are only testing people with clear symptoms. (Note, these are from a medium article, but it pretty well sourced):
In Italy, which so far has a very high mortality rate (around 7%), and where they have so far only tested people with symptoms, the infection rates by age group compared to their percentage of the population looks like this:
In South Korea, which so far has a mortality rate below 1% of all confirmed cases, and where they’ve been doing far more widespread testing, including people without symptoms, the infection rates by age group compared to their percentage of the population looks like this:
The lower relative death rate reported in SK is at least partly the result of doing far more tests. So far SK has done almost 250,000 COVID tests, the highest of any country outside China, which means approximately 5% of their total population has been tested. Italy is next, at 86,000 tests, but has a population slightly higher than SK, so their testing rate works out to 1.4%. But the more significant takeaway is that by doing more tests, SK is identifying more cases that are either asymptomatic, or that are mild, and these are the ones most likely to occur in younger, healthier people. The fact that almost 30% of their cases are in people in their 20s, means that there are a lot of asymptomatic or low-symptomatic but contagious young adults there, and likely in other countries too, and that they are actually more likely to have contracted COVID than other groups. There are some other possible confounding factors (e.g. it might be that people in their 20s in SK are being tested at an unusually high rate compared to other groups, etc.) that we don’t know, but it’s still a very striking finding. Only people in their 50s have infection rates that somewhat exceed their percentage of the population, and the difference is far less pronounced.
Anyway, my point is, if you’re in your 20s and currently disregarding advice for “social distancing” based on the fact that you think you’re unlikely to have COVID, you might be doing a lot more harm than you think.
While interesting, unfortunately the rationale that higher rate of testing is turning up asymptomatic cases in the younger population is undermined by the fact that the church-cult behind the majority of the cases in South Korea has a largerly young congregation.
That really doesn’t change anything though. There are reports that the church/cult that was responsible for the spike in cases a couple of weeks ago targets young people, though the member labeled “Patient 31″ who was the “super spreader” was 61. But even if a higher number of people in their 20s were tested because of this (and I mentioned a higher rate of testing as a possibility in the original post) and even if younger church members account for most of the people in their 20s in SK who have tested positive (which is highly unlikely at this point, since almost 250K tests have been done now), it doesn’t undermine the fact that people in their 20s *are* clearly susceptible to contracting and are therefore likely spreading COVID 19, which is the point of this post.
And it also reinforces the fact that tracing and testing contacts of people who test positive, regardless of whether they exhibit symptoms, seems to be a far more effective public health strategy than only testing people who are sick.
It is a definite that the majority of Shincheonji members are below 40. I know that there are currently >8000 cases in SK, but the picture I gathered from several news articles a couple of days ago where there were >6000 cases also had it that 3/5 to 2/3 of cases were linked to Shincheonji. In Daegu alone there are more than 9000 members, and depending on which news article you read there are 200000-300000 members in the whole of SK and there is a traffic flow between branches. It is possible that a large proportion of the tests (and therefore a large proportion of cases) have been administered to Shincheonji members, and thus the demographic breakdown is more reflective of the congregation population rather than SK's population.
Of course this does not negate your point that young people are susceptible; however what I was trying to point out was the (percieved?) misconception that it is over-whelmingly that the young who are getting infected but just not showing signs, therefore they are the ones who are actually spreading the disease within the general population. We just don't know that yet.
What we do know (and that I agree) that it is very possible that infected young people will spread it to their parents or their grandparents (or other immune-compromised friends/family) and that is a very good reason to stay away from crowds where they have a high likelihood of getting infected.
As to your other point, that would be a pipe dream but unfortunately there is just no supply for kits at the moment. The largest supplier is China.
One of the more interesting things to come out of the data on COVID from other countries is that those with higher testing rates, like South Korea, are showing a very different picture of infection rates by age than those, like Italy, who are only testing people with clear symptoms. (Note, these are from a medium article, but it pretty well sourced):
In Italy, which so far has a very high mortality rate (around 7%), and where they have so far only tested people with symptoms, the infection rates by age group compared to their percentage of the population looks like this:
In South Korea, which so far has a mortality rate below 1% of all confirmed cases, and where they’ve been doing far more widespread testing, including people without symptoms, the infection rates by age group compared to their percentage of the population looks like this:
The lower relative death rate reported in SK is at least partly the result of doing far more tests. So far SK has done almost 250,000 COVID tests, the highest of any country outside China, which means approximately 5% of their total population has been tested. Italy is next, at 86,000 tests, but has a population slightly higher than SK, so their testing rate works out to 1.4%. But the more significant takeaway is that by doing more tests, SK is identifying more cases that are either asymptomatic, or that are mild, and these are the ones most likely to occur in younger, healthier people. The fact that almost 30% of their cases are in people in their 20s, means that there are a lot of asymptomatic or low-symptomatic but contagious young adults there, and likely in other countries too, and that they are actually more likely to have contracted COVID than other groups. There are some other possible confounding factors (e.g. it might be that people in their 20s in SK are being tested at an unusually high rate compared to other groups, etc.) that we don’t know, but it’s still a very striking finding. Only people in their 50s have infection rates that somewhat exceed their percentage of the population, and the difference is far less pronounced.
Anyway, my point is, if you’re in your 20s and currently disregarding advice for “social distancing” based on the fact that you think you’re unlikely to have COVID, you might be doing a lot more harm than you think.
While interesting, unfortunately the rationale that higher rate of testing is turning up asymptomatic cases in the younger population is undermined by the fact that the church-cult behind the majority of the cases in South Korea has a largerly young congregation.
A gentle reminder that an international pandemic would indeed make for a fascinating opportunity to engage with online pedagogy were it not for the massive disruption and crippling anxiety due to it being an INTERNATIONAL PANDEMIC
Happy Friday!
a new concept: idiot academia
where u have book smarts but have absolutely no common sense
that’s just academia
confirm
02.14.20 //
roses are red
cell media is pink
or is the word media plural so it should be cell media are pink
anyway does it even matter for this poem
probably not i think
My cell media is orange
Nothing rhymes with orange
Our Experimental Error columnist stresses that if a question ends in a period, it’s not a question
Wallabies Can Get Pregnant While Pregnant
Conceiving during pregnancy sounds on its surface like “a peculiar mode of reproduction,” says Ava Mainieri, an evolutionary biologist at Harvard University who wasn’t involved in the study. But the strategy seems to work for the wallabies, who should perhaps be admired for their resilience. “The female reproductive body is amazing,” she adds. “Any strategy a [female body] can capitalize on … to increase her fitness, she will use.”
Headaches are a very common problem. Often they are mild, short-lived, and require no treatment, but others can be life-threatening. Knowing about the causes helps guide medics’ questions, examination, and investigations to find the answer.
This is from a series of medical illustrations I’m doing where I take common symptoms and visualise as many important causes as I can. You can read more about it here (and see the others): https://artibiotics.com/blog/causes-of-headache
If you’d like to support my efforts to make medicine more accessible with art, click here: https://artibiotics.com/support
Have an awesome day!
Labs are sh!t am I right
