- BBC Science/Nature
- 21/8/12 23:18
Scientists analyse the chemistry in a woolly mammoth tusk to work out how far it travelled.
181 articles from THURSDAY 12.8.2021
Scientists analyse the chemistry in a woolly mammoth tusk to work out how far it travelled.
Use of "clean" hydrogen has been seen as a viable and environmentally benign energy alternative, but a study released Thursday said it could lead to higher greenhouse gas emissions than coal.
A multi-year study on automated transit fare collection offers a key finding that won't surprise you: Despite the convenience, the rush toward cashless fare systems has created barriers for lower-income riders seeking to use transit. Results from focus groups, surveys, and a review of current transit agency practices suggest that continuing to accept cash is a crucial way to keep transit...
Stock trading volumes in the United States have soared over the last year and much of it seems to be driven by retail investors. With thousands of stocks to choose from, what factors influence investors' decisions?
Quantum entanglement is one of the most fundamental and intriguing phenomena in nature. Recent research on entanglement has proven to be a valuable resource for quantum communication and information processing. Now, scientists have discovered a stable quantum entangled state of two protons on a silicon surface, opening doors to an organic union of classical and quantum computing platforms and...
PARP inhibitors, used to treat patients with cancer of the breast, ovaries, prostate and pancreas, work by inducing persistent DNA gaps in tumor cells with BRCA1 and BRCA2 mutations. The discovery offers the potential to monitor tumors for the development of resistance to PARP inhibitor therapy, and to identify drug combinations that could prevent drug resistance and improve the efficacy of cancer...
'Blue' hydrogen -- an energy source that involves a process for making hydrogen by using methane in natural gas -- is being lauded as a clean, green energy to help reduce global warming. But authors of a new report believe it may harm the climate more than burning fossil fuel.
A new study suggests competition for food from coyotes -- a relative newcomer to the Southeast -- may be putting pressure on foxes, particularly the gray fox.
A team of scientists has discovered a new marmoset species in the Brazilian Amazon. Schneider's marmoset is named after professor Horacio Schneider, a pioneer and major contributor to the research of diversity and evolution of monkeys.
Hypertrophic cardiomyopathy (HCM) is the most common of all genetic heart diseases and is the leading cause of sudden cardiac death. It is characterized by an abnormal thickening of the heart muscle, which over time can lead to cardiac dysfunction and, ultimately, heart failure.
On Aug. 9, 2021, ESA/NASA's Solar Orbiter spacecraft passed within 4,967 miles (7,995 kilometers) of the surface of planet Venus. In the days leading up to the approach, the Solar Orbiter Heliospheric Imager, or SoloHI, telescope captured this gleaming view of the planet.
A team of scientists has discovered a new marmoset species in the Brazilian Amazon. Schneider's marmoset (Mico schneideri), described in the latest issue of the journal Scientific Reports, is named after professor Horacio Schneider, a pioneer and major contributor to the research of diversity and evolution of monkeys.
Polycentric development is being promoted to lessen problems of urban sprawl and reduce vehicle miles traveled (VMT). A new article published in the August 2021 issue of Applied Geography examines the difference between "morphological" and "functional" polycentricity in the Wasatch Front Region of Utah.
Quantum entanglement is one of the most fundamental and intriguing phenomena in nature. Recent research on entanglement has proven to be a valuable resource for quantum communication and information processing. Now, scientists from Japan have discovered a stable quantum entangled state of two protons on a silicon surface, opening doors to an organic union of classical and quantum computing...
In the 1850s, an American scientist named Eunice Foote deduced, based on experiments she’d conducted, that if carbon dioxide levels in the atmosphere were higher, the planet would be warmer. And in the 1890s, a Swedish chemist named Svante Arrhenius calculated, by hand, exactly how much the earth would warm as carbon dioxide levels. By the 1990s, the influence of human activities on the...
More than 17,000 years ago, a woolly mammoth roamed enough of the Alaskan landscape to circle the Earth twice, according to a new paper from an international team of researchers who retraced the lifetime of one of the extinct Arctic...
Photocatalysts absorb energy from light to make a chemical reaction happen. The best known photocatalyst is perhaps chlorophyll, the green pigment in plants that helps turn sunlight into carbohydrates. While carbohydrates may be falling out of favor, photocatalysis is garnering more attention than ever. In a photocatalytic process, light falls on a photocatalyst, increases the energy of its...
Portal origin URL: DART Gets Its Wings: Spacecraft Integrated with Innovative Solar Array Technology and CameraPortal origin nid: 473202Published: Thursday, August 12, 2021 - 15:10Featured (stick to top of list): noPortal text teaser: Perched atop a stand in the middle of a high-ceilinged clean room, DART is beginning to look like the intrepid spacecraft that will aim...
Russia's top criminal investigation agency on Thursday probed an oil spill off the country's Black Sea coast that appeared hugely bigger than initially reported.
In addition to being visually stunning, schools of herring, herds of wildebeest and countless other groups of organisms that act in concert can help complex ecosystems maintain their diversity and stability, new research by Oregon State University shows.
Researchers at CU Boulder are part of a newly published study that finds that low-rise, high-density environments like those found in Paris are the optimal urban form when looking to reduce greenhouse gas emissions over their whole life cycle.
Researchers have developed an innovative technique for creating nanomaterials. These are materials only atoms wide. They draw on nanoscience to allow scientists to control their construction and behavior. The new electron beam nanofabrication technique, plasmon engineering, achieves unprecedented near-atomic scale control of patterning in silicon. Structures built using this approach produce...
Finding animals in the wild can be tough, even for researchers with access to airplanes, high-end cameras and other costly gear.
Researchers have studied how two characteristic Arctic-alpine plant species respond to global warming. They did this by analyzing almost 500 million of their own readings from the mountainous region of Norway. The analyses show that potential consequences of climate change are extremely dependent on the specific location of the plants and that deciduous species in particular will benefit from...
Scientists have unraveled the enigma of inheritance of coat color patterns in dogs. The researchers discovered that a genetic variant responsible for a very light coat in dogs and wolves originated more than two million years ago in a now extinct relative of the modern wolf.
A new strategy for modeling the spread of COVID-19 incorporates smartphone-captured data on people's movements and shows promise for aiding development of optimal lockdown policies.
An international research team has retraced the astonishing lifetime journey of an Arctic woolly mammoth, which covered enough of the Alaska landscape during its 28 years to almost circle the Earth twice.
A high-fat diet disrupts the biology of the gut's inner lining and its microbial communities -- and promotes the production of a metabolite that may contribute to heart disease, according to a new study.
Scientists have identified an unusual enzyme that plays a major role in the infection of plants - and have shown that disabling this enzyme effectively stops plant disease in its tracks.
Abnormal cells that go on develop into esophageal cancer -- cancer that affects the tube connecting the mouth and stomach -- start life as cells of the stomach, according to scientists. The study found that a particular subtype of esophageal cancer known as esophageal adenocarcinoma is always preceded by Barrett's esophagus -- abnormal cells of the esophagus -- even if these cells are no longer...
The feeding patterns of black holes offer insight into their size, researchers report. A new study revealed that the flickering in the brightness observed in actively feeding supermassive black holes is related to their mass.