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| Stone Age raves to the beat of elk tooth rattles? Posted: 03 Jun 2021 02:13 PM PDT In the Stone Age, some 8,000 years ago, people danced often and in a psychedelic way. This is a conclusion drawn from elk teeth discovered in the Yuzhniy Oleniy Ostrov burial site in the Republic of Karelia, Russia, whose wear marks and location in the graves indicate that the objects were used as rattlers. |
| Filter membrane renders viruses harmless Posted: 03 Jun 2021 02:13 PM PDT Researchers are developing a new filter membrane that is highly efficient at filtering and inactivating a wide variety of air-borne and water-borne viruses. |
| Underwater ancient cypress forest offers clues to the past Posted: 03 Jun 2021 02:12 PM PDT Marine geologists and paleoclimatologists new research findings uncover new information about the underwater ancient cypress forest and the Gulf Coast's past. |
| South Pole and East Antarctica warmer than previously thought during last ice age, two studies show Posted: 03 Jun 2021 02:11 PM PDT Glaciologists analyzed Antarctic ice cores to understand the continent's air temperatures during the most recent glacial period. The results help understand how the region behaves during a major climate transition. |
| Genetic base editing treats sickle cell disease in mice Posted: 03 Jun 2021 02:11 PM PDT Sickle cell disease leads to chronic pain, organ failure, and early death in patients worldwide. A team has demonstrated a gene editing approach that efficiently corrects the mutation underlying SCD in patient blood stem cells and in mice. This treatment rescued disease symptoms in animal models, enabling long-lasting production of healthy blood cells, and could inspire a therapeutic strategy for SCD. |
| Mockingbirds follow similar musical rules as those found in human music Posted: 03 Jun 2021 02:11 PM PDT Mockingbirds follow similar musical rules as those found in human music, from Beethoven to Kendrick Lamar. |
| What guides habitual seeking behavior explained Posted: 03 Jun 2021 02:11 PM PDT A recent study revealed that a long-term value memory maintained in the ventral striatum in the brain is a neural basis of our habitual seeking behavior. |
| North Atlantic right whales have gotten smaller since the 1980s Posted: 03 Jun 2021 02:11 PM PDT Whales are largely protected from direct catch, but many populations' numbers still remain far below what they once were. A study suggests that, in addition to smaller population sizes, those whales that survive are struggling. As evidence, they find that right whales living in the North Atlantic today are significantly shorter than those born 30 to 40 years ago. |
| Front-row view reveals exceptional cosmic explosion Posted: 03 Jun 2021 02:11 PM PDT Scientists have gained the best view yet of the brightest explosions in the universe: A specialised observatory in Namibia has recorded the most energetic radiation and longest gamma-ray afterglow of a so-called gamma-ray burst to date. The observations with the High Energy Stereoscopic System (H.E.S.S.) challenge the idea of how gamma-rays are produced in these colossal stellar explosions which are the birth cries of black holes, as the international team reports. |
| A shark mystery millions of years in the making Posted: 03 Jun 2021 02:11 PM PDT The biggest shark attack in history did not involve humans. A new study by earth scientists has turned up a massive die-off of sharks roughly 19 million years ago. It came at a period in history when there were more than 10 times more sharks patrolling the world's oceans than there are today. |
| Biocompatible hydrogel materials can rapidly recover from mechanical stress Posted: 03 Jun 2021 02:11 PM PDT Hydrogels are polymer materials made mostly from water. They can be used in a wide range of medical and other applications. However, previous incarnations of the materials suffered from repeated mechanical stress and would easily become deformed. A novel crystal that can reversibly form and deform, allows hydrogels to rapidly recover from mechanical stress. This opens up the use of such biocompatible materials in the field of artificial joints and ligaments. |
| Studies reveal skull as unexpected source of brain immunity Posted: 03 Jun 2021 02:10 PM PDT Researchers have discovered that the immune cells that protect the brain and spinal cord come primarily from the skull. The finding opens up the possibility of developing therapies to target such cells as a way to prevent or treat brain conditions. |
| How quantum dots can 'talk' to each other Posted: 03 Jun 2021 08:20 AM PDT A group has worked out theoretically how the communication between two quantum dots can be influenced with light. The team shows ways to control the transfer of information or energy from one quantum dot to another. To this end, the researchers calculated the electronic structure of two nanocrystals, which act as quantum dots. With the results, the movement of electrons in quantum dots can be simulated in real time. |
| Water droplets become hydrobots by adding magnetic beads Posted: 03 Jun 2021 08:19 AM PDT Using a piece of magnet, researchers have designed a simple system that can control the movement of a small puddle of water, even when it's upside down. The new liquid manipulation strategy can have a wide range of applications including cleaning hard-to-reach environments or delivering small objects. |
| Five million years of climate change preserved in one place Posted: 03 Jun 2021 08:19 AM PDT An international team of researchers has now succeeded in reconstructing changes in rainfall in Central Asia over the past five million years. The information preserved within the sedimentary succession provides the missing link for understanding land-water feedbacks for global climate. |
| Scientists found a new and promising qubit at a place where there is nothing Posted: 03 Jun 2021 08:19 AM PDT In the world of quantum mechanics, researchers can even make empty space, the lack of something, do their bidding. Scientists have now created a new setup to control the absence of electrons in a solid material. They want to use these holes as a basis for a quantum computer. |
| Study confirms invasive lionfish now threaten species along Brazilian coast Posted: 03 Jun 2021 08:19 AM PDT Study confirms invasive lionfish now threaten species along Brazilian coast; management is critical to protecting local biodiversity. |
| Puppies are wired to communicate with people Posted: 03 Jun 2021 08:19 AM PDT Dogs may have earned the title 'man's best friend' because of how good they are at interacting with people. Those social skills may be present shortly after birth rather than learned, a new study suggests. |
| Jets from massive protostars might be very different from lower-mass systems Posted: 03 Jun 2021 08:19 AM PDT A highly-detailed VLA image indicates that the jets of material propelled outward by young stars much more massive than the Sun may be very different from those ejected by less-massive young stars. |
| Is Earth's core lopsided? Strange goings-on in our planet's interior Posted: 03 Jun 2021 08:19 AM PDT Seismic waves generated by earthquakes travel through Earth's solid iron inner core faster in the direction of the rotation axis than along the equator. Scientists created a core growth model to explain this. To fit seismic data, the model predicts that asymmetric growth of the core leads to crystal movement that preferentially aligns iron-nickel crystals north-south. The model implies that the core is only 0.5-1.5 billion years old, a fraction of Earth's age. |
| Coastal flooding increases Bay Area traffic delays and accidents Posted: 03 Jun 2021 08:19 AM PDT Disruptions from sea-level rise and coastal flooding events have significant indirect impacts on urban traffic networks and road safety. |
| How leafbirds make complex color-producing crystals Posted: 03 Jun 2021 08:19 AM PDT A recent study has discovered a novel way to manufacture single gyroid photonic crystals to work in the visible light spectrum, based on the self-assembly mechanism found in blue-winged leafbirds. |
| Secondary infections inflame the brain, worsening cognition in Alzheimer's disease Posted: 03 Jun 2021 05:35 AM PDT New research into Alzheimer's disease (AD) suggests that secondary infections and new inflammatory events amplify the brain's immune response and affect memory in mice and in humans -- even when these secondary events occur outside the brain. |
| Combination of early reading programs helps with kindergarten readiness Posted: 03 Jun 2021 05:35 AM PDT A new study shows the combination of two early reading programs had positive effects on preschool students entering kindergarten. |
| Beneficial arthropods find winter sanctuary in uncultivated field edges, study finds Posted: 03 Jun 2021 05:35 AM PDT A new study reveals that beetles, wasps and other beneficial arthropods are nearly twice as abundant and diverse in uncultivated field edges in the spring as they are in areas that are cropped - if those field edges are rich in an array of flowers and other broad-leaved plants and not just mowed grass. |
| Declining fish biodiversity poses risks for human nutrition Posted: 02 Jun 2021 02:06 PM PDT All fish are not created equal, at least when it comes to nutritional benefits. This truth has important implications for how declining fish biodiversity can affect human nutrition, according to a computer modeling study. |
| Culture drives human evolution more than genetics Posted: 02 Jun 2021 02:06 PM PDT Researchers found that culture helps humans adapt to their environment and overcome challenges better and faster than genetics. Tim Waring and Zach Wood found that humans are experiencing a 'special evolutionary transition' in which the importance of culture is surpassing the value of genes as the primary driver of human evolution. Due to the group-orientated nature of culture, they also concluded that human evolution itself is becoming more group-oriented. |
| Record-breaking temperatures more likely in populated tropics Posted: 02 Jun 2021 02:06 PM PDT New research shows that most extreme heat events are going to occur in the tropics rather than the poles. |
| Lighting hydrogels via nanomaterials Posted: 02 Jun 2021 02:06 PM PDT Hydrogels are commonly used inside the body to help in tissue regeneration and drug delivery. However, once inside, they can be challenging to control for optimal use. A team of researchers is developing a new way to manipulate the gel -- by using light. |
| Zika virus RNA found in free-ranging African bats Posted: 02 Jun 2021 12:34 PM PDT Scientists have detected Zika virus RNA in free-ranging African bats. RNA, or ribonucleic acid, is a molecule that plays a central role in the function of genes. |
| New study may help explain low oxygen levels in COVID-19 patients Posted: 02 Jun 2021 12:33 PM PDT A new study sheds light on why many COVID-19 patients, even those not in hospital, are suffering from hypoxia -- a potentially dangerous condition in which there is decreased oxygenation in the body's tissues. The study also shows why the anti-inflammatory drug dexamethasone has been an effective treatment. |
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