Nuclear imaging examines "aching bones" for fractures or diseases like leukemia, lymphoma, and other cancers. Conventional ear replacements involve surgically inserting an ear-shaped device under the skin-but scientists working with the Armed Forces Institute of Regenerative Medicine hope to dramatically improve on that system. Doctors perform a laparoscopic colon cancer surgery in the Intelligent Operating Room at Hospital General in Ciudad Real, Spain. State of the science in 1915 these ampoules of paratyphoid A and B serum, typhoid serum, streptococcus serum, and dysentery vaccine now reside in The Science Museum, London. Incredible advances in bionic arms and other limbs are helping patients regain movements and independence that increasingly rivals the real thing. Sperm is injected into a human egg during an in vitro fertilization procedure in Leipzig, Germany. Black lighting brings out colorful quantum dots, essentially nanosized semiconductors, which are present in different bottles of medical imaging solution. Dolly the sheep, the first mammal ever, cloned from an adult cell, remains stoic despite the uproar cased by here 1996 birth. Today's ultra-realistic prosthetic limbs not only replicate natural movements in ways unthinkable a decade ago-they're beginning to look a lot more like the real thing as well. Pain-free surgery became a reality in 1846, opening new avenues for the surgeon's skill and relieving patients of what had been a terrible ordeal. This colorblind squirrel monkey couldn't see the red of a pepper or the green of a bean before it was cured with gene therapy.
A $102 million biosecurity laboratory set to open in Kazakhstan will help scientists study dangerous diseases such as plague, which is re-emerging in Central Asia.
A new device will help search and rescue teams scan wreckage for survivors following disasters such as earthquakes, scientists say. Scientists are using advanced technologies—from x-rays to facial recognition software—to look at history's masterpieces. Through biomimicry, design based on nature, 3-D printing technology could get safer and better.
National Geographic explores how we can feed the growing population without overwhelming the planet in our food series. Follow mountaineer Conrad Anker, photographer Cory Richards, and their team as they attempt the West Ridge route in the alpine style, carrying all their own food, shelter, and equipment. The space-weather forecast for the next few years: solar storms, with a chance of catastrophic blackouts on Earth. Archaeologists and artists, armed with the latest tools and techniques, are bringing the life-size army of painted clay soldiers back to life.
Each month, National Geographic magazine features breathtaking photographs in Visions of Earth.
Human Footprint - National Geographic Channel - AsiaWe use first and third party cookies to improve our service, personalize your advertising and remember your website preference. Learn how we impact the Earth.Over an average lifetime, each one of us will have a huge impact on the world around us. A unique insight into the natural world, the environment and the amazing creatures that inhabit it. Cookies are very small text files that are stored on your computer when you visit some websites. Surrounded by naturally preserved corpses, a South American people may have been inspired to make their own elaborate mummies, a new study says.


Preserved by one of Earth's driest climates, a long-buried corpse in Chile's Atacama Desert retains centuries-old skin, hair, and clothing (file picture). Laid to rest on woven reeds, a bewigged prehistoric boya€”or a reasonable facsimilea€”bears evidence to the Chinchorro's complex mummification rituals. Marquet and his team think the start of the Chinchorro's mummification practices coincided with a period of increased rainfall in the nearby Andes mountains (picture) about 7,000 years ago, as evidenced by the discovery of fossils belonging to perennial plants in regions that are so-called absolute desert today.
To compare Chinchorro population fluctuations with the environmental evidence, Marquet and his team collected data on nearly 500 radiocarbon-dated archaeological sites in southern Peru and northern Chile. A border of whale bones mark the grave of two adult and two infant Chinchorro mummies, possibly part of the same family. Early Chinchorro mummymakers "flesh out" the bones of a skinned skeleton with reeds and ash paste in an artist's conception. The 2,000-year-old masked face of a mummified Chinchorro woman peers out from shroud made from reeds, rope, and nonhuman skin, possibly of a pelican.Unlike the ancient Egyptians, who considered only kings and other nobles worthy of mummification, the Chinchorro performed the sacred rite on nearly everyone, regardless of age or status. In life and death, some Chinchorro children were strapped to wooden frames worn on their parents' backs.
Crumbling after decades in storage at a Santiago museum, Chinchorro mummies are repacked by curators in 1995.Marquet said his team's study helps highlight the role of the environment as a creative force to which humans can respond by cultural innovation.
The paste-faced head of a Chinchorro child mummy is held straight by a stick that emerges from the top of the skull.
Around the time that the Chinchorro stopped making mummies, ancient Egyptians took up the practice. In a first for arthropods, the spiny animal kept its brood tethered to its body as it swam Eartha€™s seas 430 million years ago.
We use cookies to make your experience better on this website.By clicking any link on this page you are giving your consent for us to do this. Patients are injected with a radioactive tracer which enters the bloodstream and passes in a matter of hours into the bones where it can be imaged by a "gamma camera." The resulting images reveal abnormalities in bones which are marked by non-uniform distribution of the tracer.
Laparoscopic surgery is a minimally invasive procedure in which tiny incisions up to an inch-long (2.5 centimeters-long), are made for the insertion of tube-like cameras and instruments. Vaccinations were known in ancient China but the modern process began with English doctor Edward Jenner. New generations of mind-controlled prostheses even use surgically-transplanted nerves to transfer the brain's electrical impulses to electrodes and a micro-computer that govern limb movements from touching to typing.
In vitro is generally the most effective of a suite of assisted reproductive technologies which now help many couples conceive. When ingested the dots can reveal processes inside the body and track molecules and cells in real time. Scientists genetically "reprogrammed" an adult sheep cell and implanted it into the womb of a surrogate mother.
The Scottish company Touch Bionics has created "living Skin" products which are silicone based and hand-painted to match skin tones and appearances right down to freckles, hair, or tattoos. In a packed operating theater at Massachusetts General Hospital dentist William Morton gave ether to a patient due for a jaw tumor removal by surgeon John Collins Warren. Scientists injected the animal with a virus carrying the genes that produce color-viewing proteins and subsequently altered its retina. This unique film, presented by Elizabeth Vargas, delivers an extraordinary personal audit revealing just how much, how many, and how often we use and consume the world's resources. You can remove any cookies already stored on your computer, but these may prevent you from using parts of our website.


Naturally dehydrated corpses like this probably inspired the region's ancient Chinchorro people to actively mummify their dead, scientists speculate in a new study.
Rather than preserving flesh, the desert people used a paste of manganese-infused ash to sculpt "bodies" atop defleshed skeletons, whose internal organs had been replaced with earth. The resulting curve indicates that population increased dramatically about 7,000 years ago, peaked about a thousand years later, and began declining by about 5,000 years ago.
The Chinchorro may have mummified their dead as a way of coping with the persistence of their ancestors' bodies in the arid Atacama."In many hunter-gatherer societies, if the bodies of the dead don't go away, they are still present.
Archaeologists think the Chinchorro developed elaborate death rituals around the mummies they created. Above, in a detail of a larger photo, a 5,000-year-old mummified child's feet testify to a Chinchorro practice of preserving extremities.The study team's speculation about the rise of Chinchorro mummificationa€”that a flush period 7,000 years ago encouraged cultural developmenta€”works in reverse too.
Some scholars have speculated that mummification in North Africa might also have been inspired by bodies preserved in the desert. But archaeologists are increasingly confronted with demands to let past generations rest in peace.
Covering the ear implant with lab-grown human cartilage will reduce future risks of infection and protrusion. In 1796 Jenner found that rubbing material from a non-dangerous cowpox sore into a lesion on a child's arms bestowed immunity from a similar disease with far more deadly consequences-smallpox. The sheep gave birth to Dolly and a world of possibilities from agricultural enhancement to the prospect of genetically modified pigs which might serve as human organ donors. The conflicts in Iraq and Afghanistan, where the use of improvised explosive devices is widespread, has driven new research in the development of better prostheses.
The feat raises the distinct possibility that other types of blindness, including those with far worse impacts than color blindness, might also be cured by altering the genetic building blocks behind out eyesight. Many of the mummies were sturdily constructed, their joints reinforced with reeds and sticks. The word 'muscle' comes from Latin term meaning 'little mouse', which is what Ancient Romans thought flexed bicep muscles resembled.
Some surgeries are also robot-assisted, allowing surgeons to manipulate mechanical arms with joystick-like controls. After three to five days in a lab dish a healthy embryo will be implanted into the mother's uterus. Quantum dots are just one application of medical nanotechnology, which harnesses the unique properties matter exhibits at extremely small scales and points them towards a promising future in medical breakthroughs. Dolly also created an ongoing debate about the ethical quandaries associated with the practice of cloning. In fact, gene therapy has already been used to treat children with Leber's congenital amaurosis-a rare form of blindness. This may have been done to help the corpses withstand handling by mourners, who may have paraded the mummies around before placing them on display.



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