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lesbihonest

cheers, m'dear (◕‿◕✿)

you can call me rachel. 20. nyu sophomore.
current location: new york city.
inheritedl0ss:

spectacularuniverse:

I’ve seen this photograph very frequently on tumblr and Facebook, always with the simple caption, “Ghost Heart”. What exactly is a ghost heart?
More than 3,200 people are on the waiting list for a heart transplant in the United States. Some won’t survive the wait. Last year, 340 died before a new heart was found.The solution: Take a pig heart, soak it in an ingredient commonly found in shampoo and wash away the cells until you’re left with a protein scaffold that is to a heart what two-by-four framing is to a house.Then inject that ghost heart, as it’s called, with hundreds of millions of blood or bone-marrow stem cells from a person who needs a heart transplant, place it in a bioreactor - a box with artificial lungs and tubes that pump oxygen and blood into it - and wait as the ghost heart begins to mature into a new, beating human heart.Doris Taylor, director of regenerative medicine research at the Texas Heart Institute at St. Luke’s Episcopal Hospital in Houston, has been working on this— first using rat hearts, then pig hearts and human hearts - for years.The process is called decellularization and it is a tissue engineering technique designed to strip out the cells from a donor organ, leaving nothing but connective tissue that used to hold the cells in place. This scaffold of connective tissue - called a “ghost organ” for its pale and almost translucent appearance - can then be reseeded with a patient’s own cells, with the goal of regenerating an organ that can be transplanted into the patient without fear of tissue rejection.This ghost heart is ready to be injected with a transplant recipient’s stem cells so a new heart - one that won’t be rejected - can be grown.(Source)

Because I didn’t believe it was real at first

inheritedl0ss:

spectacularuniverse:

I’ve seen this photograph very frequently on tumblr and Facebook, always with the simple caption, “Ghost Heart”. What exactly is a ghost heart?

More than 3,200 people are on the waiting list for a heart transplant in the United States. Some won’t survive the wait. Last year, 340 died before a new heart was found.

The solution: Take a pig heart, soak it in an ingredient commonly found in shampoo and wash away the cells until you’re left with a protein scaffold that is to a heart what two-by-four framing is to a house.

Then inject that ghost heart, as it’s called, with hundreds of millions of blood or bone-marrow stem cells from a person who needs a heart transplant, place it in a bioreactor - a box with artificial lungs and tubes that pump oxygen and blood into it - and wait as the ghost heart begins to mature into a new, beating human heart.

Doris Taylor, director of regenerative medicine research at the Texas Heart Institute at St. Luke’s Episcopal Hospital in Houston, has been working on this— first using rat hearts, then pig hearts and human hearts - for years.

The process is called decellularization and it is a tissue engineering technique designed to strip out the cells from a donor organ, leaving nothing but connective tissue that used to hold the cells in place. 

This scaffold of connective tissue - called a “ghost organ” for its pale and almost translucent appearance - can then be reseeded with a patient’s own cells, with the goal of regenerating an organ that can be transplanted into the patient without fear of tissue rejection.

This ghost heart is ready to be injected with a transplant recipient’s stem cells so a new heart - one that won’t be rejected - can be grown.


(Source)

Because I didn’t believe it was real at first

posted 1 month agovia©

brandx:

mothernaturenetwork:

12-year-old invents Braille printer using Lego set
The Braigo printer cost its inventor about $350, making it more affordable than other Braille printers that can retail for more than $2,000.

And because I seriously side-eye this Western journalism trend of never crediting and NAMING the actual inventors in the headlines (especially when they’re young POC)

this inventor’s name is Shubham Banerjee, and he is making his glorious design completely open source, publishing it online FREE of charge! Just remember this kid’s name before some crusty old white dude “innovates” his design and takes all the credit.

posted 1 month agovia©
plays

twofoursixsodone:

Liquid oxygen being poured through a magnetic field.

posted 2 months agovia©

NYU Neurosurgeon Uzma Samadani May Have Just Saved The Super Bowl →

catherineaddington:

After watching cousin after cousin play contact sports for years, my hypochondriac self might have just found peace. An NYU neurosurgeon could have just figured out the first way to definitively detect concussions, and get this — the technology is accessible enough to be turned into a smartphone app.

posted 2 months agovia©

Google Glass 'could transform the way surgery is performed' →

posted 4 months agovia©

alright listen chemistry has been teaching me some really cool shit this semester and i just need a moment to dedicate to making this nerd post because i am so enthusiastic about this alright

first of all i never knew that learning about gases would actually be interesting but here we go

i was reading my textbook today and in the section about densities of gases, it was talking about how some fire extinguishers contain CO2 because it’s denser than the composition gases in the air, so it sinks onto the fire and stops O2 from reaching the fuel

it also talked about how volcanic lakes release CO2 naturally and paleontologists speculate that its release blanketing the lower atmosphere (i.e. pushing away our breathable air) contributed to the dying-off of dinosaurs

THIS SHIT IS SO FASCINATING OK

skarosoul:

endermisha:

bmoburns:

preteenager:

HOW DOES POPCORN EVEN DO THAT THING

HERE I SHOW YOU THE THING

image

this is the most majestic thing i have ever seen in my entire life 

it’s like a ballet

the way this happens is actually super interesting! popcorn kernels contain water within their shells, so when you heat them up, the water within the kernel boils and changes states, becoming water vapor. continuing to heat the kernel(s) leads to a build up of pressure that eventually causes the kernel to burst open. the soft part of the popcorn is the starch expanding and solidifying from a gel-like state. gaseous properties, guys, they’re super fun.

posted 4 months agovia©

phototoartguy:

Eerie beauty of the squid: Underwater photographs which capture spectacular colours of sea creature usually thought of as ugly

Bobtail squids use thousands of cells in the outer layer of their skin to change colour

They transform to attract a mate or blend in with their surroundings

Underwater photographer Todd Bretl 

posted 5 months agovia©

churchsext:

how the fuck does Tylenol know where the pain is and how to stop it like why doesn’t it occasionally fuck up and just numb ur whole leg like wtf

well, in simple terms, tylenol is a type of drug that blocks pain signals from reaching your nervous system (brain and spinal cord), and it doesn’t actually work at the site of injury. so it only affects your sensation where pain is involved. 

posted 5 months agovia©