Science News Science News Respective post owners and feed distributors Tue, 22 Jan 2013 09:53:08 -0600 Feed Informer 18.5 million year old vine fossil identified as new species ScienceDaily: Latest Science News urn:uuid:e2e52e9a-0d67-6707-bdb5-59c2d6655100 Fri, 07 May 2021 10:20:42 -0500 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 ScienceDaily: Latest Science News urn:uuid:6f3875a8-3a1e-4714-dcc0-b26ec2003eb4 Fri, 07 May 2021 10:20:22 -0500 Some meat eaters feel disgusted by meat, according to a new study. Migratory songbirds climb to extreme altitudes during daytime ScienceDaily: Latest Science News urn:uuid:0b2f1062-458d-90f7-1c94-e1f4e6e83b43 Fri, 07 May 2021 10:20:18 -0500 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 ScienceDaily: Latest Science News urn:uuid:5be5adc3-8785-5ef4-b325-999f75bec963 Fri, 07 May 2021 08:39:44 -0500 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 ScienceDaily: Latest Science News urn:uuid:32cef0f6-bcb2-ff3f-03d9-53bafe0c46d0 Fri, 07 May 2021 08:37:53 -0500 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. Sugar-sweetened drinks linked to increased risk of colorectal cancer in women under 50, study finds ScienceDaily: Latest Science News urn:uuid:1f210d3e-da87-43f0-dab7-1bc40c7c2a39 Thu, 06 May 2021 17:33:53 -0500 Colorectal cancer diagnoses have increased among people under age 50 in recent years and researchers are seeking reasons why. A new study has found a link between drinking sugar-sweetened beverages and an increased risk of developing colorectal cancer in women under age 50. The findings suggest that heavy consumption of sugary drinks during adolescence (ages 13 to 18) and adulthood can increase the disease risk. PCB contamination in Icelandic orcas: a matter of diet ScienceDaily: Latest Science News urn:uuid:cd4718d6-638c-d42c-da1d-79a0e2019684 Thu, 06 May 2021 16:41:21 -0500 A new study suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have levels of PCBs that are much lower. It mainly depends on what they eat. Swiping, swabbing elevates processing plant food safety ScienceDaily: Latest Science News urn:uuid:de305e24-040f-e858-4c10-7522a6de4ba8 Thu, 06 May 2021 16:41:14 -0500 By swiping surfaces in commercial food processing plants with specially designed rapid-testing adenosine triphospate (ATP) swabs -- which produce a light similar to the glow of fireflies in the presence of microorganisms -- spoilage and foodborne illness could diminish, according to a new study. Scrap for cash before coins ScienceDaily: Latest Science News urn:uuid:3edc1668-0df8-5a24-5eab-f11fe60cd35f Thu, 06 May 2021 16:41:03 -0500 How did people living in the Bronze Age manage their finances before money became widespread? Researchers ave discovered that bronze scrap found in hoards in Europe circulated as a currency. These pieces of scrap -- which might include swords, axes, and jewellery broken into pieces -- were used as cash in the late Bronze Age, and in fact complied with a weight system used across Europe. Online learning doesn't improve student sleep habits, research suggests ScienceDaily: Latest Science News urn:uuid:5538f753-2973-5f18-7ceb-35aa5f1b6a53 Thu, 06 May 2021 15:36:18 -0500 New research suggests that students learning remotely become night owls but do not sleep more despite the time saved commuting, working or attending social events. Organ transplant recipients remain vulnerable to COVID-19 even after second vaccine dose ScienceDaily: Latest Science News urn:uuid:71127afd-73de-abcc-9e03-59c542343c7e Thu, 06 May 2021 15:36:16 -0500 In a new study, researchers show that although two doses of a vaccine against SARS-CoV-2 -- the virus that causes COVID 19 -- confers some protection for people who have received solid organ transplants, it's still not enough to enable them to dispense with masks, physical distancing and other safety measures. 'Molecular glue' makes perovskite solar cells dramatically more reliable over time ScienceDaily: Latest Science News urn:uuid:cc3da4f9-a511-dc78-666a-82099bd48c1f Thu, 06 May 2021 13:21:51 -0500 In a study that could help to bring inexpensive, efficient perovskite solar cells one step closer to commercial use, researchers found a way to strengthen a key weak point in the cells' internal structure, dramatically increasing their functional life. Temperature explains why aquatic life is more diverse near equator ScienceDaily: Latest Science News urn:uuid:18c35424-0d8d-7ded-74fd-dd534737b932 Thu, 06 May 2021 13:21:49 -0500 New research suggests that temperature can largely explain why the greatest variety of aquatic life resides in the tropics -- but also why it has not always and, amid record-fast global warming, soon may not again. Bacterial DNA can be read either forwards or backwards ScienceDaily: Latest Science News urn:uuid:4176e058-53a4-e758-a19e-dee99c17997c Thu, 06 May 2021 13:21:46 -0500 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. Evading the uncertainty principle in quantum physics ScienceDaily: Latest Science News urn:uuid:7b4ce909-c090-e39f-ef09-a4b37976430d Thu, 06 May 2021 13:21:38 -0500 In quantum mechanics, the Heisenberg uncertainty principle dictates that the position and speed of an object cannot both be known fully precisely at the same time. Researchers now show that two vibrating drumheads, the size of a human hair, can be prepared in a quantum state which evades the uncertainty principle. Most human origins stories are not compatible with known fossils ScienceDaily: Latest Science News urn:uuid:7c9fee9e-2f80-c600-2791-61a2f83d682d Thu, 06 May 2021 13:21:33 -0500 In the 150 years since Charles Darwin speculated that humans originated in Africa, the number of species in the human family tree has exploded, but so has the level of dispute concerning early human evolution. A new review looks at the major discoveries in hominin origins since Darwin's works and argues that fossil apes can inform us about essential aspects of ape and human evolution, including the nature of our last common ancestor. Homing in on the smallest possible laser ScienceDaily: Latest Science News urn:uuid:c3cd3123-f224-215e-b8fe-c77028b3a74b Thu, 06 May 2021 13:21:21 -0500 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 ScienceDaily: Latest Science News urn:uuid:629a41c0-96f8-9e98-1d05-3126676dbb05 Thu, 06 May 2021 13:21:18 -0500 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 ScienceDaily: Latest Science News urn:uuid:b11ea4af-70f5-9a82-108a-f2aefd01c0b0 Thu, 06 May 2021 13:21:16 -0500 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 ScienceDaily: Latest Science News urn:uuid:9ee93b0c-72ce-e981-e522-f63dd53938d2 Thu, 06 May 2021 13:21:11 -0500 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 ScienceDaily: Latest Science News urn:uuid:19904fd3-f596-5beb-bb5a-d28ac6ac1a62 Thu, 06 May 2021 13:21:09 -0500 A new study establishes a link between specific bacteria species and physical manifestations of neurodegenerative diseases. Quantum drum duet measured ScienceDaily: Latest Science News urn:uuid:c900d803-b637-a75a-4ef0-4aeb0cd887d4 Thu, 06 May 2021 13:20:46 -0500 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 ScienceDaily: Latest Science News urn:uuid:bcd31a27-e63e-a153-5878-04799fa16d56 Thu, 06 May 2021 13:20:44 -0500 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. COVID-19 vaccine delivery by age may mitigate deaths and severe health impacts ScienceDaily: Latest Science News urn:uuid:f9109c6c-6cdb-16ca-6a00-c1acfef5ca7e Thu, 06 May 2021 13:20:41 -0500 Strategic vaccine delivery is critical to reducing COVID-19 transmission, mortality and long-term health impacts. A new study suggests that prioritizing vaccine delivery to older age groups and the medically vulnerable has the greatest impact in minimizing loss of life. The cerebellum may have played an important role in the evolution of the human brain ScienceDaily: Latest Science News urn:uuid:224d4d2c-0a24-5b54-4fc6-52592b0171a0 Thu, 06 May 2021 13:20:39 -0500 The cerebellum -- a part of the brain once recognized mainly for its role in coordinating movement -- underwent evolutionary changes that may have contributed to human culture, language and tool use, according to a new study. Sharks use Earth's magnetic fields to guide them like a map ScienceDaily: Latest Science News urn:uuid:6375a414-eee3-22ff-50a7-890726f51045 Thu, 06 May 2021 13:20:36 -0500 Sea turtles are known for relying on magnetic signatures to find their way across thousands of miles to the very beaches where they hatched. Now, researchers have some of the first solid evidence that sharks also rely on magnetic fields for their long-distance forays across the sea. Artificial color-changing material that mimics chameleon skin can detect seafood freshness ScienceDaily: Latest Science News urn:uuid:383251e2-c6e5-430e-6049-1584441610a1 Thu, 06 May 2021 13:20:34 -0500 Scientists have designed an artificial color-changing material that mimics chameleon skin, with luminogens (molecules that make crystals glow) organized into different core and shell hydrogel layers instead of one uniform matrix. The findings demonstrate that a two-luminogen hydrogel chemosensor developed with this design can detect seafood freshness by changing color in response to amine vapors released by microbes as fish spoils. Researchers speed identification of DNA regions that regulate gene expression ScienceDaily: Latest Science News urn:uuid:4047361b-c6a2-33d3-6831-972cb8342641 Thu, 06 May 2021 11:58:20 -0500 Scientists have developed a highly efficient method to address a major challenge in biology -- identifying the genetic 'switches' that regulate gene expression. Healthy young adults who had COVID-19 may have long-term impact on blood vessels and heart health ScienceDaily: Latest Science News urn:uuid:8987be23-d233-5207-853d-fe4cef0a64a6 Thu, 06 May 2021 11:58:17 -0500 New research highlights the possible long term health impacts of COVID-19 on young, relatively healthy adults who were not hospitalized and who only had minor symptoms due to the virus. Physicists describe new type of aurora ScienceDaily: Latest Science News urn:uuid:17de9067-7755-9cf4-3993-c4e38f608dbe Thu, 06 May 2021 11:58:15 -0500 The famed northern and southern lights have been studied for millennia, but they still hold secrets. Physicists describe a new phenomenon they call 'diffuse auroral erasers,' in which patches of the background glow are blotted out, then suddenly intensify and reappear. Independent evolutionary origins of vertebrate dentitions ScienceDaily: Latest Science News urn:uuid:356410b8-b2ed-771b-cd09-5cad3f183b55 Thu, 06 May 2021 11:58:12 -0500 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 ScienceDaily: Latest Science News urn:uuid:04387c92-10cf-f3fb-98b8-1f7c1dee3c3e Thu, 06 May 2021 11:58:09 -0500 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 ScienceDaily: Latest Science News urn:uuid:dd4bc410-3530-3f31-ac1d-1974bc9f89fc Thu, 06 May 2021 11:58:01 -0500 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 ScienceDaily: Latest Science News urn:uuid:7400c427-76b5-148f-f3df-d1e1ea650dfc Thu, 06 May 2021 11:57:58 -0500 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 ScienceDaily: Latest Science News urn:uuid:9662c33c-dd34-1197-bbdd-33ff1b444dee Thu, 06 May 2021 11:57:53 -0500 Researchers have engineered a nanoparticle that has the potential to revolutionize disease treatment, including for cancer. Physicists find a novel way to switch antiferromagnetism on and off ScienceDaily: Latest Science News urn:uuid:eeaea422-dc41-9fe5-7167-d931bf15de20 Thu, 06 May 2021 11:57:48 -0500 Physicists have found a novel way to switch antiferromagnetism on and off, which could lead to faster, more secure memory storage. Blocking viruses' exit strategy ScienceDaily: Latest Science News urn:uuid:d8df7233-f7d9-f2ee-3684-25c403390fce Thu, 06 May 2021 11:57:43 -0500 Tests of a new antiviral that aims to prevent the deadly Marburg virus from spreading in the body show promise, according to a new study. Shining new light on stepparent fairy-tale stereotype ScienceDaily: Latest Science News urn:uuid:d7fed170-3c12-37d3-64be-a8225739ab11 Thu, 06 May 2021 11:57:38 -0500 Although the fairy tale of the wicked stepmother is a tale as old as time, the effects of blending children with their new stepfamilies may not be as grim as once thought. In fact, new research shows that stepchildren are not at a disadvantage compared to their peers from single-parent households and actually experience better outcomes than their half-siblings -- good news for the more than 113 million Americans that are part of a step-relationship. COVID-19 vaccine is associated with fewer asymptomatic SARS-CoV-2 infections, study finds ScienceDaily: Latest Science News urn:uuid:5ba20a3d-90be-7ed0-f38e-6b5138472c76 Thu, 06 May 2021 11:57:27 -0500 St. Jude Children's Research Hospital COVID-19 screening and vaccination program for employees offers early evidence that vaccine protects against asymptomatic infection, which has fueled the pandemic. New study tracked large sharks during hurricanes ScienceDaily: Latest Science News urn:uuid:784cae78-5c0e-d832-eb00-f867689af1df Thu, 06 May 2021 09:55:08 -0500 Biologists tracked large sharks in Miami and The Bahamas to understand how these migratory animals respond to major storms, like hurricanes. Study confirms racial differences in response to prostate cancer treatment ScienceDaily: Latest Science News urn:uuid:36117cde-ead7-ed03-c5a0-e048049e0d4e Thu, 06 May 2021 09:55:04 -0500 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 ScienceDaily: Latest Science News urn:uuid:37f4009b-34c3-c5a9-09b8-eb6f4bcf9932 Thu, 06 May 2021 09:54:59 -0500 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 ScienceDaily: Latest Science News urn:uuid:e8c26fad-ecbb-9b6f-4110-e91651fc36ae Thu, 06 May 2021 09:54:56 -0500 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. First nanoscale look at a reaction that limits the efficiency of generating hydrogen fuel ScienceDaily: Latest Science News urn:uuid:fc77be52-5658-1a1d-87b5-2b3301df4392 Thu, 06 May 2021 09:54:54 -0500 Transitioning to a hydrogen economy will require massive production of cheap, clean hydrogen gas for fuel and chemical feedstocks. New tools allow scientists to zoom in on a catalytic reaction that's been a bottleneck in efforts to generate hydrogen from water more efficiently. Microalgae biofuels: Changing carbohydrates into lipids ScienceDaily: Latest Science News urn:uuid:15b5abaa-554a-6d4e-56d8-4aa0cd4154e8 Thu, 06 May 2021 09:54:52 -0500 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 ScienceDaily: Latest Science News urn:uuid:938dbc85-a92c-2eb1-694e-bae42e6d60be Thu, 06 May 2021 09:54:45 -0500 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. Many consumers misinterpret food date labels, yet use them with confidence ScienceDaily: Latest Science News urn:uuid:4a176603-114c-f3d8-827f-37b0886fe43a Thu, 06 May 2021 09:54:38 -0500 Misunderstanding food date labeling is common and educational communications are needed to improve consumer understanding, according to a new study. Men with chest pain receive faster, more medical attention than women ScienceDaily: Latest Science News urn:uuid:0ec5826f-8239-03f3-5156-4a9e86de1e48 Thu, 06 May 2021 09:54:35 -0500 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 ScienceDaily: Latest Science News urn:uuid:907243b2-c391-8954-a0a8-ef0e2cbc167c Thu, 06 May 2021 09:54:33 -0500 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 ScienceDaily: Latest Science News urn:uuid:0da76b5a-393b-9263-4f36-7569b7648ca4 Thu, 06 May 2021 09:54:29 -0500 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.