Science! (5 Viewers)

[Taurus]

Hours after pumping synthetic fluids through the bodies of dead pigs, a team of researchers from Yale University observed their hearts beginning to beat faintly. Blood circulation was restored, and some cellular functions were revived in vital organs such as the heart and liver.


The peer-reviewed findings, published Wednesday in Nature, have far-reaching consequences in medical fields such as organ transplantation.

But they also add to the thorny ethical issues surrounding the definition of death, as the distinction between the dead and the living becomes increasingly blurred.


According to the Nature article, the Yale research team used the OrganEx system — consisting of a device similar to the heart-lung machines used in surgery and the experimental mixture of fluids that promotes cellular health and reduces inflammation — on pigs one hour after they no longer had a pulse.

Another group of dead pigs was put on ECMO, a life-support measure that oxygenates the blood outside of the body. By the end of the six-hour trial, the scientists found that the OrganEx technology was capable of delivering “adequate levels of oxygen” to the pigs’ whole bodies, which restored certain key cellular functions in organs such as the heart, liver and kidneys.


“Under the microscope, it was difficult to tell the difference between a healthy organ and one which had been treated with OrganEx technology after death,” Zvonimir Vrselja, a neuroscientist at the Yale School of Medicine who took part in the study, said in a news release……..

https://www.washingtonpost.com/science/2022/08/04/yale-organex-dead-pigs-revived/

"Twelve minutes, Doctor West."

 

[Optimus Prime]

I'm sure this will be just like the square bunker on the moon
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NASA’s Perseverance rover captured an unusual image of something lying in the red sand of Mars: a bundle of string.

The rover’s front left hazard avoidance camera took a photo of the light-colored object on July 12 that some people likened to spaghetti.

Officials at the space agency confirmed that they believe the object to be a string left over from Perseverance’s landing.

The string could be from the rover or its descent stage, a component similar to a rocket-powered jet pack used to safely lower the rover to the planet’s surface, according to a spokesperson for the Perseverance mission at NASA’s Jet Propulsion Laboratory in Pasadena, California.

Perseverance had not previously been in the area where the string was found, so it’s likely the wind blew it there, the spokesperson said...........

MSN

Nasa has identified a bizarre, spaghetti-like tangle of material on Mars first seen by the US space agency’s Perseverance rover on 12 July.

The material is not of alien origin, biological or otherwise, but is instead a piece of tangled Dacron netting from the entry, descent and landing (EDL) gear that landed the rover on the Martian surface in February 2021.

Dacron is a type of synthetic fiber embedded with resin often used in high performance sail cloth, but in the case of Perseverance was likely a part of a thermal protection blanket, according to a Nasa blog.

“This particular piece of netting appears to have undergone significant unraveling/shredding, suggesting that it was subjected to strong forces,” the blog noted.
The netting is not the first piece of debris left over from the Perseverance rover’s landing that has subsequently shown up in the rover’s path..............

MSN

 

[Sailorsaint]

Nasa has identified a bizarre, spaghetti-like tangle of material on Mars first seen by the US space agency’s Perseverance rover on 12 July.

The material is not of alien origin, biological or otherwise, but is instead a piece of tangled Dacron netting from the entry, descent and landing (EDL) gear that landed the rover on the Martian surface in February 2021.

Dacron is a type of synthetic fiber embedded with resin often used in high performance sail cloth, but in the case of Perseverance was likely a part of a thermal protection blanket, according to a Nasa blog.

“This particular piece of netting appears to have undergone significant unraveling/shredding, suggesting that it was subjected to strong forces,” the blog noted.
The netting is not the first piece of debris left over from the Perseverance rover’s landing that has subsequently shown up in the rover’s path..............

MSN

Science has a way of harshing my buzz.

 

[Optimus Prime]

Science has a way of harshing my buzz.

I was hoping for a Martian child's kite string myself

 

[Tapxe]

NEW YORK (AP) — Scientists restored some activity within the brains of pigs that had been slaughtered hours before, raising hopes for some medical advances and questions about the definition of death.

The brains could not think or sense anything, researchers stressed. By medical standards “this is not a living brain,”said Nenad Sestan of the Yale School of Medicine, one of the researchers reporting the results Wednesday in the journal Nature.

But the work revealed a surprising degree of resilience among cells within a brain that has lost its supply of blood and oxygen, he said.

“Cell death in the brain occurs across a longer time window than we previously thought,” Sestan said…..

Scientists spur some activity in brains of slaughtered pigs

NEW YORK (AP) — Scientists restored some activity within the brains of pigs that had been slaughtered hours before, raising hopes for some medical advances and questions about the definition of death.

apnews.com

The brain is fragile, and if deprived of oxygen — for example from a massive heart attack, or through drowning — it will quickly and catastrophically degrade, leading to irreversible brain death. And that’s it — the end.

But that medical orthodoxy now must contend with a major report published Wednesday in the journal Nature that is simultaneously fascinating and disturbing: Researchers at Yale School of Medicine say they have restored some cellular function in pig brains from animals decapitated four hours earlier at a local slaughterhouse.

Over the course of a six-hour treatment, the brains were infused with a cocktail of synthetic fluids designed to halt cellular degeneration and restore cellular functions, such as metabolic activity.

It worked: The brains continued to consume oxygen and glucose.

Many brain cells, including neurons, which send messages within the brain and to the rest of the body, ceased decaying and appear to have been revived in dramatic and detectable ways……

https://www.washingtonpost.com/amphtml/science/2019/04/17/scientists-restore-some-brain-cell-functions-pigs-four-hours-after-death/

 

[bonnjer]

New drug candidate for drug-resistant bacteria

 

[Sailorsaint]

New drug candidate for drug-resistant bacteria

If I understand correctly, bacteria have nowhere to hide now, at least until nature counters it and we have to modify it.

 

[faceman]

If I understand correctly, bacteria have nowhere to hide now, at least until nature counters it and we have to modify it.

we have known how to fight bacteria for awhile now. We are now learning how to fight a virus.

 

[Tapxe]

 

[faceman]

The real danger in heavy rainfall is in areas with no ground to soak it up. Houston is a good example. Most of the ground is covered is asphalt and concrete . There is nowhere for the water to go except the streets and unlucky homes .

 

[DaveXA]

The real danger in heavy rainfall is in areas with no ground to soak it up. Houston is a good example. Most of the ground is covered is asphalt and concrete . There is nowhere for the water to go except the streets and unlucky homes .

Vegas has a somewhat similar problem. When a monsoon hits, you can get flash flooding there very quickly. Then a day later, all the water is gone, lol.

 

[Tapxe]

Pig skin protein gives sight back to 14 blind people – including three with perfect vision

The bioengineered corneas could provide a new and less invasive solution for the millions around the world in need of cornea transplants.

www.cbsnews.com

 

[Optimus Prime]

I did not know that ants couldn’t be killed in a microwave. I also wonder how one discovered that fact​

====================

Let me ask you this: 'Why don't ants get killed in the microwave?'​

A microwave works by passing radio waves at a frequency of 2.45 gigahertz through any food. Radio waves at this frequency have an interesting property: they are absorbed by water and fats.

When absorbed, the water or fat molecules start rotating due to the alternating nature of the electric fields of the microwave. This atomic motion is directly converted into energy which is given out as heat.

Now, coming to the question itself. A number of theories were placed. Here are some of them:

1. Ants are too small to be affected by microwaves as the wave lengths of these waves are quite large.

2. Ants contain too little water for them to be affected by the microwave.

3. Chitin (Ants exoskeleton material) will resist microwaves.

Microwave beams are standing wave. Such waves always remain in a constant position. So within a microwave there will be places where the energy density will be very high, whereas in others it will be very low.

That is why we always have a turntable within microwave ovens in order to make sure that all parts of a meal are heated.

Ants being relatively small can easily be positioned between these waves, and in the process remain entirely unharmed…….

Let me ask you this: 'Why don't ants get killed in the microwave?'

www.independent.co.uk

 

[Optimus Prime]

Scientists have built a robot that defies the standard laws of physics and could eventually help humans travel around black holes.

When humans, animals, and machines move through the world they must push against something – be that the ground, air, or water. This is Newton’s third law: every action has an equal and opposite reaction.

The law applies to flat, three-dimensional space that humans move through, but in curved space forces can differ – and objects can move without frictional or gravitational impact.

As such, researchers from the Georgia Institute of Technology claim they have built a robot that can move in curved space without pushing against anything……

Scientists build robot that could one day help us travel around black holes

Researchers from Georgia Tech claim they’ve built a robot that can move in curved space without Newton’s third law

www.independent.co.uk

 

[Optimus Prime]

On 8 August, 2021, 192 laser beams pumped vastly more power than the entire US electric grid into a small gold capsule and ignited, for a faction of a second, the same thermonuclear fire that powers the Sun.

The experiment in fusion power, conducted by the National Ignition Facility at Lawrence Livermore National Laboratory in California, is explored in detail in three new papers — one published in Physical Review Lettersand twopapers published in Physical Review E— that argue the researchers achieved “ignition,” a crucial step proving that controlled nuclear fusion is achievable.

But definitions of what constitutes “ignition” vary, and however defined, the results of 2021 are still very far away from a practical fusion reactor, despite producing a very large amount of energy……

Fusion power breakthrough celebrated in new studies, but controversy remains

A historically large output from a fusion experiment is still far from a sustainable and controlled fusion power plant

www.independent.co.uk