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ScienceDaily: Latest Science News |
| Visuals increase attention; now science explains why Posted: 17 Dec 2021 12:19 PM PST Scientists report that norepinephrine, a fundamental chemical for brain performance, is locally regulated in a brain region called the visual cortex. |
| Magnetic ‘hedgehogs’ could store big data in a small space Posted: 17 Dec 2021 08:32 AM PST Atomic-scale magnetic patterns resembling a hedgehog's spikes could result in hard disks with massively larger capacities than today's devices, a new study suggests. The finding could help data centers keep up with the exponentially increasing demand for video and cloud data storage. |
| Coast redwood and sequoia genome sequences completed Posted: 17 Dec 2021 07:28 AM PST Scientists have completed the sequences for the coast redwood and giant sequoia genomes. The research helps better explain the genetic basis for these species' ability to adapt to their changing environments. The findings indicate that the coast redwood genome evolved from a single ancestral species. |
| Fire and ice: The puzzling link between western wildfires and Arctic sea ice Posted: 17 Dec 2021 07:28 AM PST Researchers uncover the mechanics behind dwindling Arctic sea ice and its influence on wildfire weather in the western United States. |
| Cannabis may contain heavy metals and affect consumer health, study finds Posted: 16 Dec 2021 12:00 PM PST A new meta-analysis examines the ability of cannabis plants to absorb heavy metals and discusses the resulting health impacts on consumers. |
| Demonstrating Feshbach resonances between a single ion and ultracold atoms Posted: 16 Dec 2021 11:59 AM PST A team has demonstrated magnetic Feshbach resonances between a single barium ion and lithium atoms at near absolute zero temperature. The researchers found that depending on the strength of the external magnetic field, the expansion of the ion and atoms can be controlled. |
| College football players have abnormalities in coordination and inflammation Posted: 16 Dec 2021 11:59 AM PST Collegiate football athletes with a decade or more of experience with the sport have related abnormalities in inflammation, energy production and coordination that are apparent before the football season and across the season, a new study has found. The abnormalities are related to routine repetitive head impacts from tackling and blocking. |
| Realistic model of mouse hippocampus uncovers new mechanism for pattern separation Posted: 16 Dec 2021 11:59 AM PST Our brains can distinguish highly similar patterns, thanks to a process called pattern separation. How exactly our brains separate patterns is, however, not full,y understood yet. Using a full-scale computer model of the dentate gyrus, a brain region involved in pattern separation, researchers found that inhibitory neurons activated by one pattern suppress all their neighboring neurons, thereby switching off 'competing' similar patterns. |
| Nanoparticle therapeutic enhances cancer immunotherapy Posted: 16 Dec 2021 11:59 AM PST Researchers have discovered that a nanoparticle therapeutic enhances cancer immunotherapy and is a possible new approach in treating malignant pleural effusion (MPE). MPE is the accumulation of fluid between the chest wall and lungs and is accompanied by malignant cells and/or tumors. |
| 1,500 endangered languages at high risk of being lost this century Posted: 16 Dec 2021 11:59 AM PST A new study warns 1,500 endangered languages could no longer be spoken by the end of this century. |
| Marine life can cling together to buy time in the face of climate warming Posted: 16 Dec 2021 11:58 AM PST Some marine species can help protect others from climate change by shielding them from heat, according to a new study. |
| New potential treatment for graft-versus-host-disease and other inflammatory disorders Posted: 16 Dec 2021 11:58 AM PST Researchers have shown that blocking IL-6 and TNF cytokines provides a more effective approach to preventing life-threatening graft-versus-host-disease, an inflammatory condition that develops in patients after their allogeneic hematopoietic stem cell transplantation. |
| California Academy of Sciences researchers describe 70 new species in 2021 Posted: 16 Dec 2021 11:58 AM PST Researchers describe 70 new species in 2021 from the lowland forests of Madagascar to Easter Island's coral reefs. |
| Study questions widely used race-based formula to define lung disease Posted: 16 Dec 2021 11:58 AM PST New results from a long-term epidemiologic study reveal that one of the oldest racially based diagnostic formulas in medicine is no better than a race-neutral equation. |
| Fabricating stable, high-mobility transistors for next-generation display technologies Posted: 16 Dec 2021 11:58 AM PST The trade-off between carrier mobility and stability in amorphous oxide semiconductor-based thin film transistors (TFTs) has been finally overcome by researchers in an ingeniously fabricated indium tin zinc oxide TFT. This could pave the way for the design of display technologies that are cheaper than current silicon-based technologies. |
| New smart-roof coating enables year-round energy savings Posted: 16 Dec 2021 11:50 AM PST Scientists have developed an all-season smart-roof coating that keeps homes warm during the winter and cool during the summer -- without consuming natural gas or electricity. Research findings point to a groundbreaking technology that outperforms commercial cool-roof systems in energy savings. |
| A new way to find genetic variations removes bias from human genotyping Posted: 16 Dec 2021 11:50 AM PST Since the first sequencing of the human genome more than 20 years ago, the study of human genomes has relied almost exclusively on a single reference genome to which others are compared to identify genetic variations. Scientists have long recognized that a single reference genome cannot represent human diversity and that using it introduces a pervasive bias into these studies. Now, they finally have a practical alternative. Researchers have introduced a new tool, called Giraffe, that can efficiently map new genome sequences to a 'pangenome' representing many diverse human genome sequences. |
| Diverse plant water-use strategies make forests more resilient to extreme drought Posted: 16 Dec 2021 11:46 AM PST An unprecedented drought experiment at Biosphere 2 highlights nature's surprising resilience. |
| Maples in the mountains provide clues to past distribution Posted: 16 Dec 2021 11:45 AM PST Researchers have investigated the genetic structure of the relic species, Acer miyabei, from three regions in Japan: Hokkaido Island and two southern groups in Northern and Central Honshu. There was significant genetic differentiation among the regions, with the northern group separated from the southern groups. Populations in the mountains of Central Honshu showed a high proportion of distinct alleles and the mountainous terrain in this area likely contributed to this genetic differentiation. |
| For IBS, specific diets are less important than expected Posted: 16 Dec 2021 06:27 AM PST Many IBS sufferers avoid certain types of food and often exclude gluten. However, a large new study does not show a relationship between high intake of gluten and increased IBS symptoms. The researchers did find that a certain type of carbohydrate called 'fodmaps' can aggravate intestinal problems, however, the overall results indicate that they also have less influence than previously thought. |
| As the mercury rises, the urban heat penalty grows, especially at night Posted: 16 Dec 2021 05:32 AM PST City living translates to an extra two to six hours of uncomfortable weather per day in the summer for people in much of the United States. The urban-rural heat gap grows the warmer it gets. |
| ‘Gentrification’ changes the personality make-up of cities in just a few years Posted: 15 Dec 2021 05:41 PM PST A massive study of almost two million US residents reveals rising housing costs may drive increases in 'openness' of character among both old and new inhabitants of a city -- all in well under a decade. |
| Study shows how HIV copies itself in the body Posted: 15 Dec 2021 05:41 PM PST HIV replication in the human body requires that specific viral RNAs be packaged into progeny virus particles. A new study has found how a small difference in the RNA sequence can allow the viral RNA to be packaged for replication, creating potential targets for future HIV treatments. |
| How to transform vacancies into quantum information Posted: 15 Dec 2021 05:41 PM PST Researchers have made a breakthrough that should help pave the way for greatly improved control over the formation of quantum bits or qubits, the basic unit of quantum information technology. |
| How diet influences taste sensitivity and preference Posted: 15 Dec 2021 05:41 PM PST What you eat influences your taste for what you might want to eat next. So claims a University of California, Riverside, study performed on fruit flies. The study offers a better understanding of neurophysiological plasticity of the taste system in flies. |
| Mindfulness can get wandering thoughts back on track Posted: 15 Dec 2021 05:40 PM PST Mindfulness -- the ability to intentionally focus attention on the present moment -- can be effective for reducing mind wandering, though results do differ depending on the research methodology. |
| Dark fiber seismic network finds missed aftershocks in Chinese earthquake Posted: 15 Dec 2021 10:26 AM PST Just days after a 2020 magnitude 5.1 earthquake in Tangshan, China, researchers turned nearly 8 kilometers of unused telecom fiber optic cable into a seismic array that detected dozens of aftershocks that were missed by permanent seismic stations. |
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