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Android app playing same playlist - bevgerry - Oct 19, 2020 - 7:38am
 
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You might be getting old if...... - Ohmsen - Oct 18, 2020 - 5:00pm
 
Pernicious Pious Proclivities Particularized Prodigiously - R_P - Oct 18, 2020 - 3:10pm
 
Feature Request: My Ratings Sort by Date - jarro - Oct 18, 2020 - 2:19pm
 
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Things You Thought Today - Ohmsen - Oct 18, 2020 - 11:56am
 
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Supreme Court: Who's Next? - Lazy8 - Oct 17, 2020 - 9:28pm
 
Baseball, anyone? - ScottFromWyoming - Oct 17, 2020 - 9:14pm
 
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260,000 Posts in one thread? - oldviolin - Oct 17, 2020 - 7:27pm
 
Mixtape Culture Club - oldviolin - Oct 17, 2020 - 7:19pm
 
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Play the Blues - sirdroseph - Oct 17, 2020 - 4:20am
 
Race in America - sirdroseph - Oct 17, 2020 - 4:03am
 
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It's the economy stupid. - westslope - Oct 16, 2020 - 3:18pm
 
Radio Paradise on multiple Echo speakers via an Alexa Rou... - jarro - Oct 16, 2020 - 1:43pm
 
Alexa skill - not working :( - jarro - Oct 16, 2020 - 1:36pm
 
Derplahoma Questions and Points of Interest - ScottFromWyoming - Oct 16, 2020 - 11:15am
 
Climate Change - R_P - Oct 16, 2020 - 10:57am
 
Turkey Sandwiches? Veev Wants to Know What's For Lunch - oldviolin - Oct 16, 2020 - 9:43am
 
RP App in Android Auto: - jwaldrep - Oct 16, 2020 - 9:30am
 
Talk Behind Their Backs Forum - oldviolin - Oct 16, 2020 - 8:52am
 
American Justice - Red_Dragon - Oct 16, 2020 - 7:59am
 
Obvious Headlines - Red_Dragon - Oct 16, 2020 - 5:59am
 
Taxes, Taxes, Taxes (and Taxes) - sirdroseph - Oct 16, 2020 - 4:57am
 
the Todd Rundgren topic - Steely_D - Oct 15, 2020 - 7:30pm
 
Trump Lies - R_P - Oct 15, 2020 - 7:01pm
 
Photos you have taken of your walks or hikes. - Antigone - Oct 15, 2020 - 2:53pm
 
MICHIGAN - Ohmsen - Oct 15, 2020 - 1:42pm
 
Automotive Lust - R_P - Oct 15, 2020 - 1:07pm
 
Annoying stuff. not things that piss you off, just annoyi... - Red_Dragon - Oct 15, 2020 - 12:58pm
 
What did you have for dinner? - nate917 - Oct 15, 2020 - 11:39am
 
Those Lovable Policemen - cc_rider - Oct 15, 2020 - 7:46am
 
• • • The Once-a-Day • • •  - oldviolin - Oct 15, 2020 - 7:07am
 
Would you drive this car for dating with ur girl? - islander - Oct 15, 2020 - 6:32am
 
What Did You Do Today? - davidharper - Oct 15, 2020 - 4:36am
 
Bike! - KurtfromLaQuinta - Oct 14, 2020 - 9:12pm
 
Country Up The Bumpkin - Ohmsen - Oct 14, 2020 - 4:19pm
 
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Today in History - Jester - Oct 14, 2020 - 2:41pm
 
Environment - R_P - Oct 14, 2020 - 12:46pm
 
What are you listening to now? - westslope - Oct 14, 2020 - 12:17pm
 
Real Life vs. the Internet - miamizsun - Oct 14, 2020 - 10:12am
 
Poetry Forum - ScottN - Oct 14, 2020 - 9:53am
 
Index » Internet/Computer » The Web » Tech & Science Page: Previous  1, 2, 3, ... 191, 192, 193  Next
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Red_Dragon

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Posted: Apr 2, 2020 - 6:41am

Scientists have found "dense" communities of creatures living deep beneath the sea, in a discovery that gives hope that similar life could be found on Mars.
haresfur

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Location: The Golden Triangle
Gender: Male


Posted: Mar 31, 2020 - 2:28pm



 rgio wrote:


 haresfur wrote:


 NoEnzLefttoSplit wrote:

That's an excellent article. 

A mate of mine (health advisor to the UN in Geneva) basically put everything down in a couple of sentences: "The only reliable way to get true estimates of what percentage of a population has been infected is from a population-based sero prevalence study, which gives you the denominator you need to accurately estimate death rates. 

 
 
I disagree with this, if I understand correctly. A random (or as close to random as you can practically get) sample of the population, performed through time would give you a good estimate of the infection rate and how it is changing. Since the rate is high, your sample size doesn't need to be huge to find the infected %. It's hard to estimate one in a million, but not so hard to estimate one in a hundred. 
 
I believe the original suggestion is a test for everyone, not a sample
.  It's impossible to know who's experienced the virus if we didn't allow testing for everyone with symptoms, let alone to the numbers of asymptomatic people that may have antibodies and don't know they have them.

 
And that's my problem with the medical profession viewpoint. They, rightly deal with individuals and want to know exactly what is going on with their patients. But statistics are powerful tools for dealing with populations. If we had good data on a sample of people, along with whether they felt they had symptoms and their body temperature, we would have a very good estimate of how many people had been affected.

rgio

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Location: West Jersey
Gender: Male


Posted: Mar 31, 2020 - 1:50pm



 haresfur wrote:


 NoEnzLefttoSplit wrote:

That's an excellent article. 

A mate of mine (health advisor to the UN in Geneva) basically put everything down in a couple of sentences: "The only reliable way to get true estimates of what percentage of a population has been infected is from a population-based sero prevalence study, which gives you the denominator you need to accurately estimate death rates. 

 
 
I disagree with this, if I understand correctly. A random (or as close to random as you can practically get) sample of the population, performed through time would give you a good estimate of the infection rate and how it is changing. Since the rate is high, your sample size doesn't need to be huge to find the infected %. It's hard to estimate one in a million, but not so hard to estimate one in a hundred. 
 
I believe the original suggestion is a test for everyone, not a sample.  It's impossible to know who's experienced the virus if we didn't allow testing for everyone with symptoms, let alone to the numbers of asymptomatic people that may have antibodies and don't know they have them.

haresfur

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Location: The Golden Triangle
Gender: Male


Posted: Mar 31, 2020 - 1:41pm



 NoEnzLefttoSplit wrote:

That's an excellent article. 

A mate of mine (health advisor to the UN in Geneva) basically put everything down in a couple of sentences: "The only reliable way to get true estimates of what percentage of a population has been infected is from a population-based sero prevalence study, which gives you the denominator you need to accurately estimate death rates. Given the huge differentials in deaths by age cohorts, you need a huge sample size for your sero-prevalence survey."  


The problem with this is that antibody testing is only just coming on the market AND we need to test vast numbers of people.
What is known, is that a sizeable number of people die from the virus, so letting it rage uncontrolled is not an option at this stage. 

Ergo:  policy should err on the side of caution until we work out an exit strategy.

I am more worried about a second or third peak of the pandemic coming. People's tolerance of social distancing is already wearing thin.. hard to see it lasting the distance, or maybe it just becomes the new normal.

 
 
I disagree with this, if I understand correctly. A random (or as close to random as you can practically get) sample of the population, performed through time would give you a good estimate of the infection rate and how it is changing. Since the rate is high, your sample size doesn't need to be huge to find the infected %. It's hard to estimate one in a million, but not so hard to estimate one in a hundred. That's why they can get away with a poll of only a few thousand people to decide how many people think Trump is a weaponized plum.

good estimate of the infection trends, now, will allow a back estimate of the people who have been infected.

I think I posted about how we have started testing one in five people who present at the hospital for any reason. I'd prefer they go out and test in the community, but even that will give good numbers. Certainly better than we have had.
kurtster

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Location: drifting
Gender: Male


Posted: Mar 31, 2020 - 1:59am

 NoEnzLefttoSplit wrote:


I am more worried about a second or third peak of the pandemic coming. People's tolerance of social distancing is already wearing thin.. hard to see it lasting the distance, or maybe it just becomes the new normal.

 
 
I'm worried about the rebound second wave more than right now myself.  People will get complacent and sloppy again quickly after the first round is on the wane.  They'll think I must be doing things right or I wouldn't still be here and relax, too much.  I don't know what my job will be like when we get back open and start dealing with humans again up close and personal.

Are we as opticians, going to be in masks and gloves indefinitely ?  I would have to be pretty stupid to not wear the stuff.  Handling all of the frames and keeping them sanitary and everyone safe ?  Are people going to keep themselves away when they aren't feeling good for the benefit of others they may come into close contact with ?

It's really going to depend on how fast we get a vaccine up and running.  Right now the only ones who can be even somewhat comfortable at all are the recovered.  Getting there is the problem.  And we still don't know they cannot get reinfected although its a pretty good chance they won't.

Like you were thinking earlier ... about getting deliberately infected.  Our FDA just approved the Chloroquine / Zpack treatments.  I just got out of the hospital and being in the high risk group that i'm in, pretty healthy (for me) and stable at the moment.  Infect myself now before the hospitals get really slammed and be pretty sure of a bed and the stuff needed to get me over the hump ?  There is a real short window of opportunity here before the hospitals around here get maxed out and it'll be luck of the draw of being admitted into a good place with a good chance of walking out upright instead of under a sheet.  Replacement PPE's are about to be restocked, it'll never be a better chance than soon.   I've already had to make that choice once.  Yeah, this is selfish at least and stupid at worst.  But it is what is going through my mind right now.  I'd rather take myself out than get randomly infected by some dummy who still thinks hygiene is a kind of denim pants.  Back in the 90's when I first got into this bidnez, I was working for WalMart.  I dared to refuse to help a young woman with a little kid who had snot literally dripping out of his nose and onto his shirt asking her to please come back another time.  I got "coached" about that ...
NoEnzLefttoSplit

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Gender: Male


Posted: Mar 31, 2020 - 12:29am

 R_P wrote:
The Mathematics of Predicting the Course of the Coronavirus
Epidemiologists are using complex models to help policymakers get ahead of the Covid-19 pandemic. But the leap from equations to decisions is a long one.
 
That's an excellent article. 

A mate of mine (health advisor to the UN in Geneva) basically put everything down in a couple of sentences: "The only reliable way to get true estimates of what percentage of a population has been infected is from a population-based sero prevalence study, which gives you the denominator you need to accurately estimate death rates. Given the huge differentials in deaths by age cohorts, you need a huge sample size for your sero-prevalence survey."  

The problem with this is that antibody testing is only just coming on the market AND we need to test vast numbers of people.
What is known, is that a sizeable number of people die from the virus, so letting it rage uncontrolled is not an option at this stage. 

Ergo:  policy should err on the side of caution until we work out an exit strategy.

I am more worried about a second or third peak of the pandemic coming. People's tolerance of social distancing is already wearing thin.. hard to see it lasting the distance, or maybe it just becomes the new normal.

 
R_P

R_P Avatar



Posted: Mar 30, 2020 - 9:41pm

The Mathematics of Predicting the Course of the Coronavirus
Epidemiologists are using complex models to help policymakers get ahead of the Covid-19 pandemic. But the leap from equations to decisions is a long one.
In the past few days, New York City’s hospitals have become unrecognizable. Thousands of patients sick with the novel coronavirus have swarmed into emergency rooms and intensive care units. From 3,000 miles away in Seattle, as Lisa Brandenburg watched the scenes unfold—isolation wards cobbled together in lobbies, nurses caring for Covid-19 patients in makeshift trash bag gowns, refrigerated mobile morgues idling on the street outside—she couldn’t stop herself from thinking: “That could be us.”

It could be, if the models are wrong.

Until this past week, Seattle had been the center of the Covid-19 pandemic in the United States. It’s where US health officials confirmed the nation’s first case, back in January, and its first death a month later. As president of the University of Washington Medicine Hospitals and Clinics, Brandenburg oversees the region’s largest health network, which treats more than half a million patients every year. In early March, she and many public health authorities were shaken by an urgent report produced by computational biologists at the Fred Hutchinson Cancer Research Center. Their analysis of genetic data indicated the virus had been silently circulating in the Seattle area for weeks and had already infected at least 500 to 600 people. The city was a ticking time bomb.

The mayor of Seattle declared a civil emergency. Superintendents started closing schools. King and Snohomish counties banned gatherings of more than 250 people. The Space Needle went dark. Seattleites wondered if they should be doing more, and they petitioned the governor to issue a statewide shelter-at-home order. But Brandenburg was left with a much grimmer set of questions: How many people are going to get hospitalized? How many of them will require critical care? When will they start showing up? Will we have enough ventilators when they do?

There’s no way to know those answers for sure. But hospital administrators like Brandenburg have to hazard an educated guess. That’s the only way they can try to buy enough ventilators and hire enough ICU nurses and clear out enough hospital beds to be ready for a wave of hacking, gasping, suffocating Covid-19 patients.

That’s where Chris Murray and his computer simulations come in. (...)

R_P

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Posted: Mar 26, 2020 - 11:12am


dischuckin

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Location: dry shippys wa
Gender: Male


Posted: Feb 20, 2020 - 12:02pm

https://scitechdaily.com/new-i...
Quote:

Scientists at the University of Massachusetts Amherst have developed a device that uses a natural protein to create electricity from moisture in the air, a new technology they say could have significant implications for the future of renewable energy, climate change and in the future of medicine.

As reported today in Nature, the laboratories of electrical engineer Jun Yao and microbiologist Derek Lovley at UMass Amherst have created a device they call an “Air-gen.” or air-powered generator, with electrically conductive protein nanowires produced by the microbe Geobacter. The Air-gen connects electrodes to the protein nanowires in such a way that electrical current is generated from the water vapor naturally present in the atmosphere.

“We are literally making electricity out of thin air,” says Yao. “The Air-gen generates clean energy 24/7.” Lovely, who has advanced sustainable biology-based electronic materials over three decades, adds, “It’s the most amazing and exciting application of protein nanowires yet.”

...
The Air-gen discovery reflects an unusual interdisciplinary collaboration, they say. Lovley discovered the Geobacter microbe in the mud of the Potomac River more than 30 years ago. His lab later discovered its ability to produce electrically conductive protein nanowires. Before coming to UMass Amherst, Yao had worked for years at Harvard University, where he engineered electronic devices with silicon nanowires. They joined forces to see if useful electronic devices could be made with the protein nanowires harvested from Geobacter.

Xiaomeng Liu, a Ph.D. student in Yao’s lab, was developing sensor devices when he noticed something unexpected. He recalls, “I saw that when the nanowires were contacted with electrodes in a specific way the devices generated a current. I found that that exposure to atmospheric humidity was essential and that protein nanowires adsorbed water, producing a voltage gradient across the device.”

In addition to the Air-gen, Yao’s laboratory has developed several other applications with the protein nanowires. “This is just the beginning of new era of protein-based electronic devices” said Yao.

Red_Dragon

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Posted: Feb 20, 2020 - 7:08am

miamizsun

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Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Feb 12, 2020 - 5:20am

interesting stuff


Moderna eyes $500M secondary offering on upbeat coronavirus vaccine update — almost ready for the clinic

Among the army of biotechs that threw themselves into the gold rush for 2019-nCoV vaccines or therapies, Moderna emerged as one of the most legitimate contenders: The NIH had signed it on as a partner, demonstrating confidence in its messenger RNA platform to produce a vaccine rapidly.

That has given the Cambridge, MA-based biotech a nice bump on its unicorn valuation. And CEO Stéphane Bancel is seizing it.

Moderna, whose $604 million IPO set a record for the industry, is offering more stocks on the public market in hopes of raising another $500 million to fund clinical development and drug discovery, as well as expand its mRNA tech platform.

miamizsun

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Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Feb 6, 2020 - 10:15am

Researchers at @distributedbio are developing Centivax, a new kind of universal vaccine.

The vaccine has shown promise against 39 viral strains of influenza spanning the last century, including all the big pandemic strains to hit the world
http://bit.ly/37ZqeKM
R_P

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Posted: Jan 29, 2020 - 12:08am

Nuclear fallout exposes fake 'antique' whisky
If you've fantasized about dropping a few thousand dollars on a bottle of rare Scotch, you might want to re-think that investment. Scientists have found that half of the bottles of aged single malts they tested were not as old as their labels suggested.

Rare bottles of vintage Scotch whisky are highly prized by collectors and connoisseurs, and command outrageous prices. As such, counterfeit single malts have become a problem. Enter an unusual solution: Fallout from nuclear bomb tests conducted during the 1950s and 1960s could help experts to detect fake antique whisky.

Nuclear bombs that were detonated decades ago spewed the radioactive isotope carbon-14 into the atmosphere; from there, the isotope was absorbed by plants and other living organisms, and began to decay after the organisms died. Traces of this excess carbon-14 can therefore be found in barley that was harvested and distilled to make whisky. (...)

R_P

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Posted: Jan 21, 2020 - 2:26pm

2.229 billion years: Scientists date world's oldest meteor crater
A crater in western Australia was formed by a meteor strike more than 2.2 billion years ago and is the world's oldest known impact site, new research published Wednesday shows.

The study marks the first time that the Yarrabubba crater has been precisely dated, at 2.229 billion years old, and means it is 200 million years older than any similar site known on Earth.

The revelation also raises the intriguing possibility that the massive impact could have significantly altered the Earth's climate, helping end a period of global "deep freeze".

Scientists had long suspected that Yarrabubba, in a remote part of the outback, dated back several billion years.

success

success Avatar



Posted: Jan 16, 2020 - 2:21pm



 success wrote:


 R_P wrote:
 success wrote:
 R_P wrote:
 success wrote:
Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
 
Still here?
 

No Here:

Now Catch Up..
 
Don't hold your breath.
 

Ok, you can shhh now then.
 

Time for another 'are you still here' question?
success

success Avatar



Posted: Jan 16, 2020 - 2:20pm



 R_P wrote:
 success wrote:
 R_P wrote:
 success wrote:
Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
 
Still here?
 

No Here:

Now Catch Up..
 
Don't hold your breath.
 

Ok, you can shhh now then.
R_P

R_P Avatar



Posted: Jan 16, 2020 - 2:17pm

 success wrote:
 R_P wrote:
 success wrote:
Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
 
Still here?
 

No Here:

Now Catch Up..
 
Don't hold your breath.
success

success Avatar



Posted: Jan 16, 2020 - 2:14pm



 R_P wrote:
 success wrote:
Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
 
Still here?
 

No Here:

Now Catch Up..


R_P

R_P Avatar



Posted: Jan 16, 2020 - 2:11pm

 success wrote:
Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
 
Still here?
success

success Avatar



Posted: Jan 16, 2020 - 2:02pm



 R_P wrote:
 success wrote:
I guess Earth science is tech but probably better to move this conversation here:

I'm up for a laugh
 
Don't hold your breath...
 

Shoot, I forgot. You're right, I remember now...Glerfs have NOTHING!
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