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ScienceDaily: Top News |
| 18.5 million year old vine fossil identified as new species Posted: 07 May 2021 08:20 AM PDT An 18.5 million-year-old fossil found in Panama provides evidence of a new species and is the oldest reliable example of a climbing woody vine known as a liana from the soapberry family. The discovery sheds light on the evolution of climbing plants. |
| Some meat eaters disgusted by meat Posted: 07 May 2021 08:20 AM PDT Some meat eaters feel disgusted by meat, according to a new study. |
| Migratory songbirds climb to extreme altitudes during daytime Posted: 07 May 2021 08:20 AM PDT Great reed warblers normally migrate by night during its month-long migration from northern Europe to Sub-Saharan Africa. However, researchers have now discovered that during the few occasions when it continues to fly during daytime, it flies at extremely high altitudes (up to 6300 meters). One possible explanation for this unexpected and consistent behaviour could be that the birds want to avoid overheating. |
| Supernovae twins open up new possibilities for precision cosmology Posted: 07 May 2021 06:39 AM PDT Cosmologists have found a way to double the accuracy of measuring distances to supernova explosions - one of their tried-and-true tools for studying the mysterious dark energy that is making the universe expand faster and faster. |
| Hologram experts can now create real-life images that move in the air Posted: 07 May 2021 06:37 AM PDT They may be tiny weapons, but a holography research group has figured out how to create lightsabers -- green for Yoda and red for Darth Vader, naturally -- with actual luminous beams rising from them. |
| Bacterial DNA can be read either forwards or backwards Posted: 06 May 2021 11:21 AM PDT Bacteria contain symmetry in their DNA signals that enable them to be read either forwards or backwards, according to new findings which challenge existing knowledge about gene transcription. |
| Homing in on the smallest possible laser Posted: 06 May 2021 11:21 AM PDT Physicists have succeeded in generating an unusual quantum state in charge carrier complexes that are closely linked to light particles and located in ultrathin semiconductor sheets. This process produces light similar to that of a laser. The phenomenon could be used to create the smallest possible solid-state lasers. |
| Hydrogen instead of electrification? Potentials and risks for climate targets Posted: 06 May 2021 11:21 AM PDT Hydrogen-based fuels should primarily be used in sectors such as aviation or industrial processes that cannot be electrified, finds a team of researchers. Producing these fuels is too inefficient, costly and their availability too uncertain, to broadly replace fossil fuels for instance in cars or heating houses. For most sectors, directly using electricity for instance in battery electric cars or heat pumps makes more economic sense. |
| Trial demonstrates early AI-guided detection of heart disease in routine practice Posted: 06 May 2021 11:21 AM PDT Heart disease can take a number of forms, but some types of heart disease, such as asymptomatic low ejection fraction, can be hard to recognize, especially in the early stages when treatment would be most effective. |
| What can a dinosaur's inner ear tell us? Just listen Posted: 06 May 2021 11:21 AM PDT If paleontologists had a wish list, it would almost certainly include insights into two particular phenomena: how dinosaurs interacted with each other and how they began to fly. |
| New evidence links gut bacteria and neurodegenerative conditions Posted: 06 May 2021 11:21 AM PDT A new study establishes a link between specific bacteria species and physical manifestations of neurodegenerative diseases. |
| Posted: 06 May 2021 11:20 AM PDT Like conductors of a spooky symphony, researchers have 'entangled' two small mechanical drums and precisely measured their linked quantum properties. Entangled pairs like this might someday perform computations and transmit data in large-scale quantum networks. |
| Engineers and biologists join forces to reveal how seals evolved to swim Posted: 06 May 2021 11:20 AM PDT Seals and sea lions are fast swimming ocean predators that use their flippers to literally fly through the water. But not all seals are the same: some swim with their front flippers while others propel themselves with their back feet. |
| Researchers speed identification of DNA regions that regulate gene expression Posted: 06 May 2021 09:58 AM PDT Scientists have developed a highly efficient method to address a major challenge in biology -- identifying the genetic 'switches' that regulate gene expression. |
| Independent evolutionary origins of vertebrate dentitions Posted: 06 May 2021 09:58 AM PDT The origins of a pretty smile have long been sought in the fearsome jaws of living sharks which have been considered living fossils reflecting the ancestral condition for vertebrate tooth development and inference of its evolution. However, this view ignores real fossils which more accurately reflect the nature of ancient ancestors. |
| Flooding might triple in the mountains of Asia due to global warming Posted: 06 May 2021 09:58 AM PDT A research team has revealed the dramatic increase in flood risk that could occur across Earth's icy Third Pole in response to ongoing climate change. Focusing on the threat from new lakes forming in front of rapidly retreating glaciers, a team demonstrated that the related flood risk to communities and their infrastructure could almost triple. Important new hotspots of risk will emerge, including within politically sensitive transboundary regions of the Himalaya and Pamir. |
| Children likely to be pleading guilty when innocent Posted: 06 May 2021 09:58 AM PDT Young people need additional support and protection in the criminal justice system because they are more susceptible to pleading guilty when innocent, a new study argues. |
| The origin of reproductive organs Posted: 06 May 2021 09:57 AM PDT Early in fetal development, a mass of cells known as the bipotential gonad has the possibility of giving rise either to ovaries or testes, reproductive organs that contribute to many of the characteristics that define a person's sex. In a new study, researchers pinpoint the origins of that precursor gland. |
| Research breakthrough in the fight against cancer Posted: 06 May 2021 09:57 AM PDT Researchers have engineered a nanoparticle that has the potential to revolutionize disease treatment, including for cancer. |
| Study confirms racial differences in response to prostate cancer treatment Posted: 06 May 2021 07:55 AM PDT A study designed to enroll an equal number of Black and white men with advanced prostate cancer confirms key findings that have been evident in retrospective analyses and suggest potential new avenues for treating Black patients who disproportionately die of the disease. |
| New method identifies tau aggregates occurring in healthy body structures Posted: 06 May 2021 07:54 AM PDT Researchers used microscopy and machine learning to distinguish tau protein aggregates occurring as part of healthy functions from those occurring in disease. |
| More than one way for animals to survive climate change Posted: 06 May 2021 07:54 AM PDT Researchers found that to live in hotter more desert-like surroundings, and exist without water, there is more than one genetic mechanism allowing animals to adapt. This is important not only for their survival but may also provide important biomedical groundwork to develop gene therapies to treat human dehydration related illnesses, like kidney disease. |
| Microalgae biofuels: Changing carbohydrates into lipids Posted: 06 May 2021 07:54 AM PDT Engineers have developed a technique to repartition carbon resources from carbohydrates to lipids in microalgae. It is hoped that this method can be applied to biofuel production. |
| Laser pulses with record-breaking intensity Posted: 06 May 2021 07:54 AM PDT Researchers have demonstrated a record-high laser pulse intensity of over 1023 W/cm2 using a petawatt laser. It took more than a decade to reach this laser intensity. These ultrahigh intensity light pulses will enable exploration of complex interactions between light and matter in ways not possible before. |
| Men with chest pain receive faster, more medical attention than women Posted: 06 May 2021 07:54 AM PDT Among younger adults visiting the emergency department for chest pain, women may be getting the short end of the stick. Compared with men of similar age, women were triaged less urgently, waited longer to be seen, and were less likely to undergo basic tests or be hospitalized or admitted for observation to diagnose a heart attack, according to new research. |
| Mental health may play big role in recovery after a heart attack Posted: 06 May 2021 07:54 AM PDT Young and middle-aged adults who reported severe psychological distress -- such as depression or anxiety -- after suffering a heart attack were more than twice as likely to suffer a second cardiac event within five years compared with those experiencing only mild distress, according to a new study. |
| Alcohol in moderation may help the heart by calming stress signals in the brain Posted: 06 May 2021 07:54 AM PDT Moderate alcohol intake -- defined as no more than one alcoholic drink for women and two for men per day -- has been associated with a lower risk of dying from cardiovascular disease when compared with individuals who abstain from drinking or partake in excessive drinking, according to a new study. |
| Have high blood pressure? You may want to check your meds Posted: 06 May 2021 07:54 AM PDT Nearly 1 in 5 adults with high blood pressure, a leading risk factor for heart disease and stroke, also take a medicine that could be elevating their blood pressure, according to new research. The results underscore the need for patients to routinely review all of the medications they take with their care team, including those available over the counter, to make sure none could be interfering with blood pressure lowering efforts. |
| Exercise aids the cognitive development of children born preterm Posted: 06 May 2021 07:54 AM PDT A premature start in life can cause problems even into teenage years. A study indicates that training motor skills in these children helps even when they are older. |
| Epilepsy research reveals why sleep increases risk of sudden death Posted: 06 May 2021 07:54 AM PDT To understand the effect of sleep seizures, researchers monitored the brain and heart activity of people with epilepsy as they slept. |
| Zero to hero: Overlooked material could help reduce our carbon footprint Posted: 06 May 2021 07:54 AM PDT Reducing the amount of CO2 in our environment is crucial for mitigating climate change and needs materials that can adsorb CO2 from air under ambient conditions. In a new study, scientists explore the CO2 adsorption properties of zeolite, which has been overlooked in this regard, and report an unprecedented selective adsorption behavior in the extremely lower pressure region and at room temperature, paving the way for its future applications in air purification. |
| T-GPS processes a graph with trillion edges on a single computer? Posted: 06 May 2021 07:54 AM PDT A research team has developed a new technology that enables to process a large-scale graph algorithm without storing the graph in the main memory or on disks. |
| Novel non-coding RNAs regulating blood vessel formation Posted: 06 May 2021 07:54 AM PDT Researchers have discovered previously unknown non-coding RNAs (ncRNAs) involved in regulating the gene expression of vascular endothelial growth factors (VEGF), the master regulators of angiogenesis. |
| Better way to determine safe drug doses for children Posted: 06 May 2021 07:53 AM PDT To make drugs and their development safer for children, researchers have developed a method that could help determine safe drug doses more quickly. In their study, the team created a model of how organs develop that is more data-driven and consequently less prone to bias. |
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