- PhysOrg
- 19/12/17 17:56
Danish scientists have managed to extract a complete human DNA sample from a piece of birch pitch more than 5,000 years old, used as a kind of chewing gum, a study revealed Tuesday.
207 articles from TUESDAY 17.12.2019
Danish scientists have managed to extract a complete human DNA sample from a piece of birch pitch more than 5,000 years old, used as a kind of chewing gum, a study revealed Tuesday.
The COP25 climate meeting in Madrid concluded over the weekend. As in past meetings, the talks failed to make much progress on international climate action. And again, the views and needs of women were largely ignored.
An emerging technology involving particles that absorb light and turn it into localized heat sources shows great promise in several fields, including medicine. This heating must be carefully controlled however, and the ability to monitor temperature increases is crucial. Scientists report a method to measure these temperatures using terahertz radiation. The study involved gold nanorods in water in...
With countries adopting green energy practices, renewable energy now accounts for a third of the world's power. As this trend continues, more countries are looking to offshore energy sources to produce this renewable energy. Researchers identify situations where green technology such as wind turbines, wave energy converters, and other marine renewable energy devices (MREDs) have had negative...
With countries such as Iceland, Costa Rica, New Zealand, and Norway adopting green energy practices, renewable energy now accounts for a third of the world's power. As this trend continues, more and more countries are looking to offshore energy sources to produce this renewable energy. In an Opinion publishing December 17 in the journal Trends in Ecology and Evolution, researchers identify...
Researchers have discovered a novel parasitic gene in fruit flies that is responsible for destroying the eggs in the ovaries of their daughters.
A parasitic plant has found a way to circumvent an evolutionary arms race with the host plants from which it steals nutrients, allowing the parasite to thrive on a variety of agriculturally important plants. The parasite dodder, an agricultural pest found on every continent, sends genetic material into its host to shut down host defense genes.
Young adults say that Instagram helps them develop friendships in real life, especially those who are more hesitant to try new experiences, according to a recent study by Washington State University researchers.
CSIRO research has found global warming will make it more difficult to predict multi-year global climate variations, a consequence of changes to long-term climate variability patterns in the Pacific Ocean.
Over the past 70 years since the foundation of the People's Republic of China, Chinese scientists have made great contributions to various fields in the research of atmospheric sciences, which attracted worldwide attention. In the field of climate and climate change, we have witnessed multiple remarkable achievements by Chinese scientists.
Archaea, bacteria and eukaryotes are what biologists call the three domains of life. Of these three, archaea form an important link within the evolutionary theory. They are the direct ancestors of eukaryotes, but resemble bacteria in structure and organization. Archaea can colonize hot sulphur springs or extremely saline lakes, but can also be found in the ocean or in the human intestine and on...
Ancient DNA extracted from a tooth print in ancient "chewing gum" reveals new clues about our ancestors.
Analysis of birch tar describes a female hunter-gatherer with dark skin and blue eyesAt the dawn of the Neolithic era, a young woman discarded a lump of ancient chewing gum made from birch tar into a shallow, brackish lagoon that drew fishers to the coast of southern Denmark.Nearly 6,000 years later, researchers excavating the site spotted the gum amid pieces of wood and wild animal bone and from...
‘Societal shift’ is needed to tackle double blow of undernutrition and obesity in poorer countries, Lancet report warns.
Research has found global warming will make it more difficult to predict multi-year global climate variations, a consequence of changes to long-term climate variability patterns in the Pacific Ocean.
A group of researchers has demonstrated a method that allows scientists to experimentally measure how the chemical bonds of materials are altered when two different materials are linked together. This method provides an atomic layer-by-layer look at the materials' electron configuration, which is the source of traits like conductivity and magnetism.
Mothers' and babies' brains can work together as a 'mega-network' by synchronising brain waves when they interact. The level of connectivity of the brain waves varies according to the mum's emotional state: when mothers express more positive emotions their brain becomes much more strongly connected with their baby's brain. This may help the baby to learn and its brain to develop.
Purussaurus mirandai could grow to 10m in length and was able to move on land, scientists believe.
Portal origin URL: NASA’s SDO Sees New Kind of Magnetic Explosion on SunPortal origin nid: 456771Published: Tuesday, December 17, 2019 - 10:00Featured (stick to top of list): noPortal text teaser: NASA's Solar Dynamics Observatory has observed a new type of magnetic explosion, the likes of which have never seen before.Portal image: forced magnetic reconnection...
Amsterdam is trying out a "bubble barrier" to help remove plastic from canals by capturing trash hidden beneath the surface of the...
The first satellite designed to continuously monitor the planet for methane leaks made a startling discovery last year: A little known gas-well accident at an Ohio fracking site was in fact one of the largest methane leaks ever recorded in the United States.The findings by a Dutch-American team of scientists, published Monday in the Proceedings of the National Academy of Sciences, mark a step...
Premier Jason Kenney's claim that the non-profit Pembina Institute is an enemy of Alberta's energy industry is contradicted in documents his own government filed in...
A wearable monitoring device to make treatments easier and more affordable for the millions of people with swallowing disorders is about to be released into the market.
Researchers have developed new thermoelectric materials, which could provide a low-cost option for converting heat energy into electricity.
In a new study, rats with spinal cord injuries experienced a three-fold increase in motor activity when treated with neural progenitor cells that had been pre-conditioned with a modified form of tPA, a drug commonly used to treat non-hemorrhagic stroke.