"I’m trying to find money for African start-ups. But I’m much too African for this cold weather."
"What sort of start-ups?"
"Most of them combine agriculture and mobile technology."
"How do those two things go together?"
"Africa is is an interesting case because it skipped the PC age and went straight to mobile. The economy is still largely based on agriculture, and farmers are beginning to use mobile technology to keep track of weather updates, market prices, and improved farming techniques."
His apology at the end to the patient is monumental. I admire his willingness to admit he may have been wrong.
As a young surgeon, Peter Attia felt contempt for a patient with diabetes. She was overweight, he thought, and thus responsible for the fact that she needed a foot amputation. But years later, Attia received an unpleasant medical surprise that led him to wonder: is our understanding of diabetes right? Could the precursors to diabetes cause obesity, and not the other way around? A look at how assumptions may be leading us to wage the wrong medical war.
Gorgeous image of stem cells involved in healing a tail wound. Cell nuclei are in blue. Red and orange mark hair follicle stem cells (hair follicle stem cells activate to cause hair regrowth, which indicates healing).
Creator: Yaron Fuchs and Samara Brown
A intussuception as seen on CT
An intussusception is a medical condition in which a part of the intestine has invaginated into another section of intestine, similar to the way in which the parts of a collapsible telescope slide into one another.This can often result in an obstruction. The part that prolapses into the other is called the intussusceptum, and the part that receives it is called the intussuscipiens.Early symptoms can include nausea, vomiting (sometimes bile stained [green color]), pulling legs to the chest area, and intermittent moderate to severe cramping abdominal pain. Pain is intermittent not because the intussusception temporarily resolves, but because the intussuscepted bowel segment transiently stops contracting. Later signs include rectal bleeding, often with “red currant jelly” stool (stool mixed with blood and mucus), and lethargy. Physical examination may reveal a “sausage-shaped” mass felt upon palpation of the abdomen.
Amazing Macro-Photography of Individual Snowflakes
Snow Flakes are a transient type of wonderful. For a brief moment they are here, spectacular in all their brevity, and then before you know it, their moment melts away and we are forever changed by their 15 seconds of fame.
However, with the magic of photography, Photographer Alexey Kljatov is able to take these fleeting moments of magnificence and turn them into lasting close-up photos of these mesmerizing individual snowflakes.
How, you may ask is Alexey able to capture these jaw dropping and awe-inspiring shots of such a fragile existence like a snowflake? The technique he uses is called Macro-Photography and he explains it in his blog.
Equipped with a stool, dark fabrics and some make-shift camera gear of a wooden plank, duct tape and two macro lenses inverted on top of each other, Alexey goes on the balcony of his apartment in Moscow and captures momentary magic.
It’s awe-inspiring to see the elegance these water crystals hold. Each flake fractals out their own unique patterns as they fall ever so gracefully from cloud to earth blessing us with their wonder just before they leave.
The allure of each drop of artistry is that their lives however bright and brilliant, fade just as fast as they are born.
Like us they are here for a brief moment, but in their transience they are able to impact others in powerful ways, whether it’s just from a passer by, or a million people on the internet, these unique flakes of snow, like fingerprints leave their mark.
I featured him before but I just love these so much
Fetus donates stem cells to heal mother’s heart
Why wait to be born to develop a healing hand? Mouse fetuses will give up stem cells to repair their mother’s heart. The discovery could explain why half the women who develop heart weakness during or just after pregnancy recover spontaneously.
Hina Chaudhry of the Mount Sinai School of Medicine in New York City mated normal female mice with males genetically engineered to produce a green-fluorescing protein in all their body cells. Half the resulting fetuses also produced the protein, making it easy to spot any fetal tissue in the mother.
Chaudhry’s team inflicted a heart attack on the pregnant mice and killed them two weeks later to take a look at their hearts. They found some fluorescent cells in the mothers’ damaged heart tissue, where they had accelerated repair by changing into new heart cells, including beating cardiomyocytes and blood vessel cells.
Chaudhry says that the phenomenon is an evolutionary mechanism: the fetus promotes its own survival by protecting its mother’s heart. Because the cells are easy to obtain from the placenta and unlikely to cause immunological reactions, they could provide a new and potentially limitless source of stem cells for repairing damaged hearts.
"The study is the first to show conclusively that fetal cells contained in the placenta assist in cardiac tissue repair," says Jakub Tolar, director of stem-cell therapies at the University of Minnesota in Minneapolis.
"To date the mainstream stem-cell community has not paid much attention to fetal stem cells in the mother," says Diana Bianchi at Tufts University in Boston. “My hope is that this elegant paper will reawaken interest.”
Previous research has identified fetal stem cells in other damaged organs of pregnant women, including the brain, liver, kidney and lung. Fetuses also produce cells that are known to protect the mother against breast cancer.
from New Scientist
First photo source
Second photo source
Now, this is really neat!