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ScienceDaily: Top Science News |
| Engineering an 'invisible cloak' for bacteria to deliver drugs to tumors Posted: 17 Mar 2022 09:03 AM PDT Researchers have genetically engineered a microbial encapsulation system for therapeutic bacteria that can hide them from immune systems, enabling them to reach tumors more effectively and kill cancer cells in mice. |
| The oxidation of volcanoes -- a magma opus Posted: 17 Mar 2022 09:03 AM PDT A new study unlocks the science behind a key ingredient -- namely oxygen -- in some of the world's most violent volcanoes. The research offers a new model for understanding the oxidation state of arc magmas, the lavas that form some volcanoes, such as the one that erupted dramatically in Tonga earlier this year. The plume from Tonga's underwater volcanic eruption on Jan. 15 rose 36 miles into the air. Ash from the volcano reached the mesosphere, Earth's third layer of atmosphere. |
| A gene could prevent Parkinson's disease Posted: 17 Mar 2022 08:19 AM PDT Parkinson's disease is a neurodegenerative disorder characterized by the destruction of a specific population of neurons: the dopaminergic neurons. A team has investigated the destruction of these dopaminergic neurons using the fruit fly as study model. The scientists identified a key protein in flies, and also in mice, which plays a protective role against this disease and could be a new therapeutic target. |
| Moon's orbit proposed as a gravitational wave detector Posted: 17 Mar 2022 06:47 AM PDT Researchers propose using the variations in distance between the Earth and the Moon, which can be measured with a precision of less than a centimeter, as a new gravitational wave detector within a frequency range that current devices cannot detect. The research could pave the way for the detection of signals from the early universe. |
| Monkeys play to reduce group tension Posted: 17 Mar 2022 06:47 AM PDT New research has discovered that monkeys use play to avoid conflict and reduce group tension. The study found that adult howler monkeys spend more time playing with other adults, rather than juveniles. And rather than being associated with fun or education, play increases when howler monkeys are foraging for fruit, which is a highly prized resource that generates competition. |
| Scientists identify neurons in the brain that drive competition and social behavior within groups Posted: 16 Mar 2022 02:32 PM PDT In mice, social ranking in a group was linked to the results of competition, and certain neurons in the brain stored this social ranking information to inform decisions. Manipulating the activity of these neurons could increase or decrease an animal's competitive effort and therefore control their ability to successfully compete against others. |
| Exposure to phthalates -- the 'everywhere chemical' -- may increase children's cancer risk Posted: 16 Mar 2022 11:58 AM PDT New research has linked phthalates, commonly called the 'everywhere chemical,' to higher incidence of specific childhood cancers. |
| Effects of ancient carbon releases suggest possible scenarios for future climate Posted: 16 Mar 2022 11:57 AM PDT A massive release of greenhouse gases, likely triggered by volcanic activity, caused a period of extreme global warming known as the Paleocene-Eocene Thermal Maximum (PETM) about 56 million years ago. A new study now confirms that the PETM was preceded by a smaller episode of warming and ocean acidification caused by a shorter burst of carbon emissions. The short-lived precursor event represents what might happen if current emissions can be shut down quickly, while the much more extreme global warming of the PETM shows the consequences of continuing to release carbon into the atmosphere at the current rate. |
| U.S. fires four times larger, three times more frequent since 2000 Posted: 16 Mar 2022 11:57 AM PDT Fires have gotten larger, more frequent and more widespread across the United States since 2000, according to a new article. The research shows that large fires have not only become more common, they are also spreading into new areas, impacting land that previously did not burn. |
| Posted: 16 Mar 2022 10:27 AM PDT In what they call surprise findings, scientists report that -- unlike fruit flies -- mosquitoes' odor sensing nerve cells shut down when those cells are forced to produce odor-related proteins, or receptors, on the surface of the cell. This 'expression' process apparently makes the bugs able to ignore common insect repellents. |
| Researchers may have unlocked the blood-brain barrier Posted: 16 Mar 2022 10:27 AM PDT The brain is composed of billions of neurons -- vulnerable cells that require a protective environment to function properly. This delicate environment is protected by 400 miles of specialized vasculature designed to limit which substances come into contact with the brain. This blood-brain barrier is essential for protecting the organ from toxins and pathogens. But it also blocks the passage of therapeutic drugs. |
| Cheaper, more efficient ways to capture carbon Posted: 16 Mar 2022 10:27 AM PDT Researchers have developed a new tool that could lead to more efficient and cheaper technologies for capturing heat-trapping gases from the atmosphere and converting them into beneficial substances, like fuel or building materials. |
| Tiny battery-free devices float in the wind like dandelion seeds Posted: 16 Mar 2022 09:08 AM PDT Inspired by how dandelions use the wind to distribute their seeds, a team has developed a tiny sensor-carrying device that can be blown by the wind as it tumbles toward the ground. |
| How the brain encodes social rank and 'winning mindset' Posted: 16 Mar 2022 09:08 AM PDT Researchers have made inroads into understanding how the mammalian brain encodes social rank and uses this information to shape behaviors. In mice engaged in a competition, the team discovered, patterns of brain activity differ depending on the social rank of the opposing animal. Moreover, the scientists could use brain readouts to accurately predict which animal would win a food reward -- the victor was not always the more socially dominant animal, but the one more engaged in a 'winning mindset.' |
| Longer, more intense allergy seasons could result from climate change Posted: 16 Mar 2022 08:50 AM PDT Allergy seasons are likely to become longer and grow more intense as a result of increasing temperatures caused by humanmade climate change, according to new research. |
| Ancient ice reveals scores of gigantic volcanic eruptions Posted: 16 Mar 2022 08:50 AM PDT Ice cores drilled in Antarctica and Greenland have revealed gigantic volcanic eruptions during the last ice age. Sixty-nine of these were larger than any eruption in modern history. According to the physicists behind the research, these eruptions can teach us about our planet's sensitivity to climate change. |
| Stackable 'holobricks' can make giant 3D images Posted: 15 Mar 2022 04:36 PM PDT Researchers have developed a new method to display highly realistic holographic images using 'holobricks' that can be stacked together to generate large-scale holograms. |
| Look! Up in the sky! Is it a planet? Nope, just a star Posted: 15 Mar 2022 12:01 PM PDT Among thousands of known exoplanets, astronomers have flagged three that are actually stars. |
| Combing the cosmos: New color catalog aids hunt for life on frozen worlds Posted: 15 Mar 2022 11:17 AM PDT Aided by microbes found in the subarctic conditions of Canada's Hudson Bay, an international team of scientists has created the first color catalog of icy planet surface signatures to uncover the existence of life in the cosmos. |
| Do sharks get their ZZZs? New evidence shows it’s not all about the hunt Posted: 15 Mar 2022 11:17 AM PDT The first physiological evidence that sharks take a break from tracking prey to catch a few winks has been uncovered by a researcher who specializes in sleep among aquatic creatures, from sharks to crocodiles. |
| Scientists find brain network that makes mice mingle Posted: 15 Mar 2022 08:29 AM PDT The difference between a social butterfly and a lone wolf is actually at least eight differences, according to new findings by a team of brain researchers. By simultaneously spying on the electrical activity of several brain regions, researchers can both identify how social or solitary an individual mouse is, and, by zapping nodes within this social brain network, can prompt mice to be even more gregarious. |
| Fast-melting alpine permafrost may contribute to rising global temperatures Posted: 14 Mar 2022 03:14 PM PDT Using lake sediment in the Tibetan Plateau, a team of researchers was able to show that permafrost at high elevations is more vulnerable than arctic permafrost under projected future climate conditions. |
| Models for molecules show unexpected physics Posted: 14 Mar 2022 12:44 PM PDT Engineers discover unusual properties in magnetized colloids that surprisingly adhere to the physics described by Kelvin's equation, which models the thermodynamics of molecular systems. |
| Scientists announce discovery of supermassive binary black holes Posted: 11 Mar 2022 03:25 PM PST Researchers have discovered a supermassive black hole binary system, one of only two known such systems. |
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