Sentences with phrase «from modern»

Although the techniques these investigators used to manipulate memory involved a jaw - dropping sampling from modern neuroscience's bag of tricks, the essential strategy is easy to understand.

By comparing the ancient genome to DNA from modern Africans, the team have been able to show that not only do East African populations today have as much as 25 % Eurasian ancestry from this event, but that African populations in all corners of the continent — from the far West to the South — have at least 5 % of their genome traceable to the Eurasian migration.

But Neandertals» hair and skin tones were almost certainly influenced by genetic variations unique to Neandertals, who were a species different from modern humans.

Therefore, it's difficult to apply information culled from modern samples to older varieties without a prehistoric control.

But then we're not twins, or clones — and surely this, the Love Factor, is a term that's conspicuously missing from our modern debate over the ethics and wisdom of human cloning.

Indeed, at the Grotte du Renne, Leroi - Gourhan found about 30 Neandertal teeth in the Châtelperronian levels, which can be distinguished from modern human teeth based on the size and shape of their cusps and other features.

Another confounding factor in earlier studies: Researchers sampled DNA from modern purebred dogs, which are the result of generations of artificial selection and hybridization by breeders, skewing the genetic timeline of when wolves and dogs parted ways.

Previous work has also shown that, following hybridization, many Neanderthal gene variants were lost from the modern human population due to selection.

DNA in this ancient Irish dog's temporal bone is distinct from modern dogs and wolves.

«New catalyst meets challenge of cleaning exhaust from modern engines: Innovation also uses less platinum, expensive component of catalytic converters.»

They found that a protein sequence in Schweitzer's data reported to be unique to dinosaurs actually matches a sequence from modern ostriches.

They found that Roman concrete differs from the modern kind in several essential ways.

So the purported dinosaur protein might be a contaminant from modern samples, Buckley says.

But genetically he is clearly a member of the first wave of colonisation that Reich identified in 2012 from modern genes.

The team suspected that diet might have played a part in the survival of the lineage that produced today's birds, and they used dietary information and previously published group relationships from modern - day birds to infer what their ancestors might have eaten.

DADDY ISSUE Genetic analysis of Y chromosomes from modern stallions, such as this Lipizzan horse named Conversano Sessana, helped scientists trace the sires of all modern stallions back 700 years to Arabian and Turkoman stallions.

That way of framing a question has virtually disappeared from the modern world.

«It was a big challenge to extract the DNA sequences from the fossil mammoths and mastodons and then to line these up with DNA from the modern elephants,» says Nadin Rohland, an evolutionary geneticist at Harvard Medical School in Boston and the study's lead author.

The team of researchers examined the hydroclimatic and societal impacts in Egypt of a sequence of tropical and high - latitude volcanic eruptions spanning the past 2,500 years, as known from modern ice - core records.

And deducing dietary guidelines from modern foraging societies is difficult because they vary so much by geography, season and opportunity

Without specifically saying so, Sir David is telling us that we are about to hear from a modern - day Charles Darwin.

It's not just governments that have problems hiding from the modern panopticon of satellites, aircraft, and ground - based cameras: Private citizens, too, are exposed.

Therefore, those societal groups who would benefit the most from modern ICT actually have lower levels of access.

Comparing the ridges and inner structure of the scales with those from modern insects suggests the fossils came from the evolutionary branch of insects that today gives us moths and butterflies with nectar - sipping mouthparts.

«We have a 7,000 - year - old sample that was nearly indistinguishable from modern domesticated dogs,» says University of Michigan biologist Amanda Pendleton, a co-author on the study.

Previous studies of juvenile Enantiornithes have shown that the sternums of these birds ossified in a pattern different from modern and other ancient birds.

Some 15 minutes later, they came back with disheartening news: the sonar signal was a collection of plastic water bottles that must have been dumped overboard from a modern boat.

Before the project, scientists mostly had to rely on DNA from modern horses to piece together the story of how the beasts of burden were domesticated.

This approach minimizes potential contamination from modern sources (SN Online: 5/31/17).

Using genetic data from modern animals to figure out what went on in the past is like flipping to the end of a novel and reading only the ending; it shows how things ended up but doesn't indicate how the story started or unfolded.

The researchers found 14 new ancient mitogenome sequences from pre-Phoenician (~ 1800 BCE) and Phoenician (~ 700 - 400 BCE) samples from Lebanon and Sardinia and then compared these with 87 new complete mitogenomes from modern Lebanese and 21 recently published pre-Phoenician ancient mitogenomes from Sardinia.

Some of these structures are already known to physicists as useful tools from modern quantum optical laboratories.

Then they compared the results with previous analyses of ancient DNA from red deer in Norway, Ireland, and Italy, as well as those from modern specimens throughout Europe.

Although the hominin fossils were clearly different from modern humans and chimpanzees, the analysis found the rest of the fossils fell into a single, highly variable group.

Then, they added a scaled - up version of the bones from a modern - day giraffe's torso and pelvis (gray); as it turns out, all known extinct relatives of today's giraffids (giraffes and okapi) have similarly shaped bodies.

«Austronesian cultures offer an ideal sample to test theories about the evolution of religions in pre-modern societies, because they were mostly isolated from modern world religions, and their indigenous supernatural beliefs and practices were well documented,» he says.

«We know from the modern vampire amoebae that at least some of them make resting cysts themselves,» Porter said.

The main industry trade group, the Nuclear Energy Institute, commissioned studies that showed U.S. plants could sustain a direct hit from a modern airliner without any radiation release.

Climate data from modern corals date back no more than 400 years.

It is interesting that the most similar skulls in our sample come from recent Africans on the one hand, and on the other hand from those modern humans that lived in Europe between 20 - 30,000 years ago as, for instance,... [in one location] in the Czech Republic.»

to be reevaluated and reestablished from a modern science?s point of view.

Actually, in Malaysia and much of Asia, more people seek help from alternative medicine than from modern medicine, a phenomenon that has been noted by the World Health Organization.

For eight years, he took daily readings from the old site and from a modern, screened thermometer a few yards away in the garden.

By analyzing the composition and concentrations of argon and neon isotopes trapped within the minerals collected from modern - day Papua New Guinea, Baldwin and Das identified the source of the mineral - bound gases.

To retrace the history of the disease, an international team of scientists, led by Johannes Krause from Tübingen University and Stewart Cole from EPFL Lausanne, have reconstructed entire genome sequences of M. leprae bacteria from five medieval skeletons that were excavated in Denmark, Sweden and the United Kingdom as well as seven biopsy samples from modern patients.

Summons, who was part of a research team that studied fossils of squid to show that ink from the Jurassic period was chemically indistinguishable from modern cuttlefish ink, said the study further helps demonstrate how all living things on Earth have evolved in concert.

This pine wood box spring from Zinus is a classic style from a modern brand.

Genome - cracking tools are helping us pull the past from modern languages, revealing ancient origins, migrations and relationships.

The cranium came from a modern human linked to the jaw of an orangutan.

He adds that the flight would have been a bit different from modern birds: Archaeopteryx's shoulder joint would not have allowed it to beat its wings in the same fashion, meaning the feathered dino must have used a specialized flapping motion.