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From the BBC
Researches chose the image of a human hand, representing the first form of human painting, to be the first DNA encoded image in a living form!
They inserted DNA sequences that represent the image into the genome of bacteria. Later, They decoded the sequences into an image using a computer algorism with at least 90% accuracy.
Adapted from BBC–
Washing your hands- straightforward, or is it?
There’s plenty of evidence that washing one’s hands can reduce the spread of disease, only 5% of people wash their hands ‘properly’ ‘all the time’.
10% of 3000 people were witnessed leaving public toilets without washing their hands, and of those who did,33% didn’t use soap. While it is well established that we need to wash our hands properly, there are plenty of myths about what is proper.
Does the water need to be hot to get your hands clean?
In a survey of 500 adults, 69% believed that the temperature of the water has an impact on the effectiveness of hand-washing. Researchers found that water temperature made no statistically significant difference when other factors are controlled. Temperature still affects washing, though, because excessively cold or hot water lets people spend less time washing their hands than comfortable water temperature.
Is anti-bacterial hand wash better than soap?
A 2007 and a 2015 review both concluded that anti-bacterial hand washes did not reduce the number of bacteria remaining on people’s hands after washing any more than soap did, nor was it any better than soap. Triclosan, a main ingredient on most antibacterial hand soaps, May increase anti-bacterial resistance and that and has been banned in the US and in the European Union.
Do you need to dry your hands afterwards?
Letting new hands air-dry is fine as long as he did not contaminated hands before they try out. Durkan’s transfer to your hands more easily if they’re wet.
Hand dryer or hand towel?
There’s a lot of debate surrounding this one. Most of us don’t want for as long as 45 minutes needed for the hands to dry using hand dry. New were hand dryers take 10 seconds hand and our equivalent to paper towels.
Making toilets nicer also makes a difference. One study observe 3,000 people in the US, found that if the toilets were clean and well-kept, people were more likely to stop and wash their hands properly. When the sinks were dirty, they just wanted to get out of there.
Whichever way you choose to wash and dry your hands, do it for longer than you think.
Adapted from The Smithonian
Lucy, the famous 3 million years old hominin, has been a mistery for the last few years: how did she die? A group of orthopedic surgeons were asked to review recently obtained 3D CT scans of her skeletal remains and recognized something we are all too familiar with: fracture patterns of the shoulder and other bones that we see with high energy injuries in humans. Those were fractures that happened just before and led to her and not bone breakdown that happens to bone fossils.
Adapted from Medscape
For several years, there has been a push to ban using powder in medical gloves. The US Food and Drug Administration (FDA) recently unveiled a proposal to ban powdered surgeons’ gloves and the absorbable powder lubricating them, as well as powdered gloves for patient examinations. Both synthetic gloves and those manufactured from natural rubber latex are covered.
Professional groups such as the American College of Surgeons, the American Academy of Allergy, Asthma and Immunology, and the American Nurses Association had already taken stands against powdered gloves. Government agencies such as the Centers for Disease Control and Prevention joined the chorus, as did the healthcare systems of Germany and the United Kingdom, as well as several healthcare organizations, such as Cleveland Clinic and Johns Hopkins, have either restricted or forbidden the use of these gloves.
Surgical gloves were first used in 1889, and soon, all sorts of lubricants were used to make them easier to don. Several studies has indicated respiratory complications.
Are you interested in Legends and Myths?
If so, check this out.
Bone infection can be deadly when not properly treated. Sue the Dinosaur may have learned that first hand.
Standing at a length of forty feet and 13 feet tall, it is estimated to have weighed more than 8.2 tons when alive. Sue was 28 years old when she died, making her the oldest T. rex known. During her life, this carnivore received several injuries. An injury to the right shoulder region of Sue resulted in a damaged shoulder blade, a torn tendon in the right arm, and three broken ribs.
If you look carefully at the left fibula (leg bone), you may notice that it looks different from the opposite one- twice as big and distorted.Scientist used to think it was broken, but recent CT scans showed no signs of fractures but likely as a result of bone infection– From Wikipedia.
Sue is on display at the Fields Museum in Chicago.
Napoleon’s test is one part of shoulder examination. It is meant to detect a tear of one of the rotator cuff tendons- the subscapularis. It was first described in the late 1990s and was called the belly-press test. It was later modified and named after Napoleon Ponaparte.
Napoleon Bonaparte (1769 – 1821) was a French military and political leader who rose to prominence during the French Revolution. He was Emperor of the French from 1804 to 1814. Napoleon was most well known for the hand-in-waistcoat gesture because of the several portraits made by his artist. Theories state the gesture was done by Napoleon because of a stomach pain he had, but the pose was common in portraits during the 18th and 19th centuries. The pose originates from classical times when speaking with an arm outside one’s toga was considered rude. The Napoleon test starts by placing the hand on the belly, just like Napoleon’s portrait. The patient presses the abdomen with the hand. If the subscapularis is weak or torn, the patient won’t be able to bring the elbow in front of the body or hold it there.