Sentences with phrase «on human bone»

Not exact matches

«The bone, which shows evidence of being gnawed on by a large carnivore, provided mitochondrial genetic data that showed it belongs to the Neanderthal branch,» says lead researcher Cosimo Posth of the Max Planck Institute for the Science of Human History.

Some of them were of the bones of the hand, others of coins and keys photographed through the opaque walls of a leather pocket - book, all clearly demonstrating that he had found some strange new rays which had the amazing property of penetrating as opaque an object as the human body and revealing on a photographic plate the skeleton of a living person.

God does not allow and will not allow, any spiritual being or anyone at all to have any authority on earth unless he has skin, and bones, unless he is human.

The turkey, native to Latin America, has been part of the human diet for many thousands of years, based on bone remains found in Mexico.

A single bone found in the Saudi Arabian desert is at least 85,000 years old, and may shed light on the route early humans took out of Africa

From a u-CT scan and an X-ray, researchers identified a fibrous dysplastic neoplasm — today, the most common form of benign bone tumor in humans — located on a Neandertal left rib fragment that measured 30 mm (4 1/2 inches) long.

On to the blocks were poured a mixture of recombinant human bone morphogenic protein (BMP) powder — a genetically engineered protein that causes cells to ossify or become bone — and liquid bone marrow containing stem cells.

On its own, a simple finger bone in a cave would have been assumed to belong to a human, Neandertal or other hominin.

Even more astounding, Overstreet also found stone tools and cut marks on the bones, offering archaeologists a rare glimpse into the brief period when humans and mammoths crossed paths.

Archaeologists have found clever ways to uncover ancient humans» impact on today's jungles, from ancient collagen in bones to laser scanning by aircraft.

Sen and his colleagues tested sucralose, a popular low - calorie sweetener, on stem cells — cells that could change into mature fat, muscle, cartilage or bone cells — taken from human fat tissue.

Hardy examined the wear patterns and residue on the tools and found that although modern humans had a larger range of implements, both groups engaged in similar activities, such as using tree resin to bind stone points to wooden handles and crafting tools from bone and wood.

Lucy had a smaller skull than later humanlike species, but her other bones showed that she walked upright, helping researchers reconstruct how humans began walking on two legs.

Finally, in 2004, in a cave on the island of Flores in Indonesia, bones of a human relative no larger than a modern - day 4 - year - old were discovered by archaeologist Michael Morwood of the University of Wollongong in Australia and his team.

By contrast, humans, who have a shorter pelvic bone called an ischium (informally known as a «sit bone»), can hyperextend their legs in a way that generates less force on the hamstrings at the knees.

Shortly after the discovery of the human skeleton in February 2012 the site of the find was looted; unknown divers stole all the bones lying around on the ground of the cave.

By dating a stalagmite that had grown on the hip bone, they were able to narrow down the age of the human bones from the Chan Hol Cave.

Evidence of butchery and fire on animal bones found near hobbit remains suggests that these early humans enjoyed a good barbecue, usually of baby elephants, huge rats, and deadly Komodo dragons that they hunted and killed.

But getting a DNA sample from a bone means drilling a hole in it, and archaeologists were not about to let geneticists go to work on the deteriorating human skeletons without some guarantee of a genome.

Astronauts exercise, on average, two hours a day on the station to counter effects of microgravity on the human body, which include decreased bone density and muscular atrophy.

Scans of the fossil, a toe bone from South Africa, revealed a malignant tumor on the left foot of an unknown human relative.

Prior research with cultured tissue had shown that a mix of chemicals could change bone marrow stem cells from mice to those resembling brain cells, but when a team led by neurologist Lorraine Iacovitti of Thomas Jefferson University in Philadelphia tried the same brew on human cells, the number altered was modest.

Lab tests are now being conducted on the bone, which Schablitsky suspects is from a human arm or leg that was butchered and then cooked.

The hypothesis on dietary differences between modern humans and Neandertals is based on the study of animal bones found in caves occupied by these two types of hominids, which can provide clues about their diet, but it is always difficult to exclude large predators living at the same time as being responsible for at least part of this accumulation.

But a small group of experts now says that the fracture patterns on the bones, found during highway construction near San Diego, California, must have been left by humans pounding them with stones found nearby.

Using radiocarbon dating techniques on samples that included human bone, they dated the flood to 1920 BC.

Now, a study uses a new method that relies on ancient proteins to identify and directly date Neandertal bone fragments from Grotte du Renne and finds that the connection between the archaic humans and the artifacts is real.

In November 2006, at Indonesia's Archeological Institute, it was blistering hot and I was dripping sweat on the spectacular bones of the tiniest human ever to walk this earth.

Accurate depictions of people do not seem to have played a part in the local rituals: the closest representations of human forms in the tombs are the very crude faces on the menhirs and the curious bone pendants with budlike arms and heads.

By analysing these isotope signals for possible food sources and relating them to the values shown in human bone material, it is possible to deduce the diet the person in question has lived on.

The shape of fossil hand bones found in Africa suggests the first toolmakers walked on Earth before humans did

Previous studies on animals and humans have shown that the ion can be retained in bone and tissue for several days or longer after administration.

The bones of dogs, pigs, and humans are shedding light on the rise of civilization in China.

Although the cuts on Jane's bones and their location among other food waste point to survival cannibalism, King would like to see if the team at Jamestown can find conclusive signs, like burn marks on bones, that other remains were prepared for human consumption.

Unlike early human hunter - gatherer groups, Neanderthals concentrated almost entirely on hunting big game, as evidenced by the abundance of large animal bones in Neanderthal archaeological sites.

They then used human stem cells derived from bone marrow that would normally become bone cells to test the effects of the nanoparticles on stem cell proliferation and differentiation.

Cuts and scrapes on the mammoth's bones came from human hunting weapons.

«Unfortunately, there are very few fossil finds of Gigantopithecus — only a few large teeth and bones from the lower mandible are known,» explains Prof. Dr. Hervé Bocherens of the Senckenberg Center for Human Evolution and Palaeoenvironment (HEP) at the University of Tübingen, and he continues, «But now, we were able to shed a little light on the obscure history of this primate.»

At a meeting on human origins, held this month in Gibraltar, bones in a Spanish cave and stone tools in Asia sparked controversial new ideas about human evolution and migration.

Cuts and breaks on long bones indicate that humans broke them open, likely to eat the marrow, she said.

The human spine is made up of 24 bones, called vertebrae, stacked on top of one another.

Dogs» special relationship to humans may go back 27,000 to 40,000 years, according to genomic analysis of an ancient Taimyr wolf bone reported in the Cell Press journal Current Biology on May 21.

And although there is no direct evidence — like cut marks on monkey bones or monkey bones found in trash heaps — of humans hunting the monkeys for food, Cooke says that in addition to hunting, the clearing of land for farming and the introduction of invasive species can all put a deadly strain on native island populations, which are adapted to a very specific environment and have nowhere else to go.

Beilhack and colleagues found that a slightly modified version of STAR2 has a similar effect on human T reg cells, suggesting that the approach could also prevent GvHD in leukemia and lymphoma patients after bone marrow or hematopoietic stem cell transplants.

In 1974, in the bone - dry Willandra Lakes Region World Heritage Site in Australia, scientists stumbled on a human skeleton in the dunes of long - vanished Lake Mungo.

David Kaplan, Ph.D., professor and Director of the NIH P41 Resource Center on Tissue Engineering, Alessandra Balduini, M.D., and their collaborators have focused on forming bone marrow models with these components and other growth factors to imitate and support the formation of functional human platelets.

«If you have lots of bones scattered all across East Africa, that might actually give you a better indication of what's going on in terms of human evolution over a widespread region,» he says.

Human skeletal biologist Simon Mays from the University of Southampton, UK, was unable to deduce the cause of death from the skeleton and he speculates that Stonehenge Man died of an infectious disease that killed too quickly to leave a trace on bones.

The technique relies on the radioactive isotope carbon - 14, whose radioactivity diminishes over time in a predictable manner, allowing researchers to calculate the age of ancient human sites using charcoal from fires or the bones of the prehistoric humans themselves.

Differences between in vitro viability and differentiation and in vivo bone - forming efficacy of human mesenchymal stem cells cultured on PCL - TCP scaffolds.