Science News Science News Respective post owners and feed distributors Tue, 22 Jan 2013 09:53:08 -0600 Feed Informer 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. 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. 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. 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. 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. 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. 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. First member of ill-fated 1845 Franklin expedition is identified by DNA analysis ScienceDaily: Latest Science News urn:uuid:d01499c1-bad3-85c5-3d5b-15f57d2bcad5 Thu, 06 May 2021 09:54:18 -0500 The identity of the skeletal remains of a member of the 1845 Franklin expedition has been confirmed using DNA and genealogical analyses by a team of researchers. Pioneering study explores passengers' experiences of self-driving cars in winter conditions ScienceDaily: Latest Science News urn:uuid:662f0162-e560-ee2b-2f4c-e9707575c96a Thu, 06 May 2021 09:54:06 -0500 Trust, safety and security are the most important factors affecting passengers' attitudes towards self-driving cars. Younger people felt their personal security to be significantly better than older people. The findings are from a study into passengers' attitudes towards, and experiences of, self-driving cars. Alzheimer's study: A Mediterranean diet might protect against memory loss and dementia ScienceDaily: Latest Science News urn:uuid:4a52fb6e-a296-d79f-3961-c53194c3bd92 Thu, 06 May 2021 09:53:55 -0500 Alzheimer's disease is caused by protein deposits in the brain and the rapid loss of brain matter. But a Mediterranean diet rich in fish, vegetables and olive oil might protect the brain from these disease triggers. Secret behind maintaining a healthy weight loss ScienceDaily: Latest Science News urn:uuid:1df34c53-9c37-cd2d-4d1a-20498dceb067 Thu, 06 May 2021 09:53:44 -0500 Almost one in six people worldwide live with obesity, which may have serious health consequences. Researchers now document how to effectively achieve and maintain a healthy weight loss. One third of patients hospitalized with COVID-19 have lung changes after a year ScienceDaily: Latest Science News urn:uuid:709d3569-e084-8702-8752-91960ddb3fa4 Thu, 06 May 2021 09:53:42 -0500 A new study has shown that most patients discharged from hospital after experiencing severe COVID-19 infection appear to return to full health, although up to a third do still have evidence of effects upon the lungs one year on. Just a few atoms thick: New functional materials developed ScienceDaily: Latest Science News urn:uuid:e0975e57-df75-6905-5470-37e011b8686e Thu, 06 May 2021 09:53:41 -0500 Using the smallest 'construction set' in the world, a research team is designing new materials for computer chips, light-emitting diodes and solar cells. Youngest children in class more likely to be diagnosed with learning disability ScienceDaily: Latest Science News urn:uuid:ebabd8f0-80dc-612b-0e8a-89a327872d10 Thu, 06 May 2021 09:47:53 -0500 Children born in December are almost twice as likely to be diagnosed with a learning disorder as those born in January in school districts with a December 31 cut-off date. ADHD was found not to affect the association between month of birth and the likelihood of a learning disability diagnosis. Antarctica remains the wild card for sea-level rise estimates through 2100 ScienceDaily: Latest Science News urn:uuid:dd689658-6794-92eb-e0e0-caa99f0be071 Wed, 05 May 2021 16:49:52 -0500 A massive collaborative research project offers projections to the year 2100 of future sea-level rise from all sources of land ice, offering the most complete projections created to date. The last battle of Anne of Brittany: isotopic study of the soldiers of 1491 ScienceDaily: Latest Science News urn:uuid:31167947-9ea8-16fd-80b7-4940c298f14a Wed, 05 May 2021 16:49:46 -0500 A multidisciplinary team of researchers has recognized the soldiers of the last battles of the siege of Rennes in 1491. These are the only witnesses of the forces involved in the conflict between the armies of Duchess Anne of Brittany and the King of France. Supersymmetry-inspired microlaser arrays pave way for powering chip-sized optical systems ScienceDaily: Latest Science News urn:uuid:9d4211ab-074f-fb73-624d-d6efd057db53 Wed, 05 May 2021 13:55:53 -0500 Ring microlasers are eyed as potential light sources for photonic applications, but they first must be made more powerful. Combining multiple microlasers into an array solves only half of the problem, as this adds noisy 'modes' to the resulting laser light. Now, thanks to the math behind supersymmetry theory, engineers have achieved single-mode lasing from such an array. By calculating the necessary properties for 'superpartner' arrays, they can cancel out the unwanted extra modes. Repurposing tabletop sensors to search for dark matter ScienceDaily: Latest Science News urn:uuid:16c7fd39-3d64-eaf9-9854-f5e837d827c9 Wed, 05 May 2021 13:55:50 -0500 Researchers across the dark matter community that have begun to wonder if they are looking for the right type of dark matter. They have proposed a new way to look for the particles that might make up dark matter by repurposing existing tabletop sensor technology. Study offers earliest evidence of humans changing ecosystems with fire ScienceDaily: Latest Science News urn:uuid:2a69e394-f30d-a4ea-e1f1-f7bb4ee1bb00 Wed, 05 May 2021 13:55:42 -0500 Mastery of fire has given humans dominance over the natural world. A new study provides evidence of ancient humans significantly altering entire ecosystems with flames. Earliest evidence of humans changing ecosystems with fire ScienceDaily: Latest Science News urn:uuid:85871037-0d93-1d65-1b92-abeae6a46a1b Wed, 05 May 2021 13:55:42 -0500 A new study provides the earliest evidence to date of ancient humans significantly altering entire ecosystems with flames. The study combines archaeological evidence -- dense clusters of stone artifacts dating as far back as 92,000 years ago -- with paleoenvironmental data on the northern shores of Lake Malawi in eastern Africa to document that early humans were ecosystem engineers. Crohn's disease patients have specific IgG antibodies to human bacterial flagellins ScienceDaily: Latest Science News urn:uuid:83208e1c-7d80-8171-919f-78d09de5d722 Wed, 05 May 2021 12:05:47 -0500 Last year, researchers used a mouse model that included immune-reactive T cells from patients with Crohn's disease in a proof-of-principle demonstration that a flagellin-directed immunotherapy might provide similar benefits in patients. Now they have moved a step closer to possible clinical testing of this treatment, with a study that describes IgG antibodies in Crohn's disease specific for human-derived flagellins of bacteria in the Lachnospiraceae family. New ant species named in recognition of gender diversity ScienceDaily: Latest Science News urn:uuid:4b37bd23-9b4e-f9b4-ac7f-eee201723b8c Wed, 05 May 2021 12:05:44 -0500 A rare and unusual newly discovered ant from Ecuador has been named Strumigenys ayersthey, with the suffix '-they' chosen in contrast to traditional naming practices which, to date, fail to recognize gender diversity formally. The new species is distinguished by its predominantly smooth and shining cuticle surface and long trap-jaw mandibles. Our immune systems blanket the SARS-CoV-2 spike protein with antibodies ScienceDaily: Latest Science News urn:uuid:0075b8bf-76e5-cdbc-fcb9-28e693b43671 Wed, 05 May 2021 12:05:41 -0500 A previously underappreciated part of the body's natural defense against SARS-CoV-2, called non-RBD-directed antibodies, actually plays a major role in combating the virus, according to a new study. That's good news for scientists designing the next generation of vaccines to protect against variants of the virus or future emerging coronaviruses. Scientists model Saturn's interior, explain planet's unique magnetic field ScienceDaily: Latest Science News urn:uuid:18cdf7e9-89f4-5ab0-4033-93f737bc09bf Wed, 05 May 2021 12:05:31 -0500 New simulations offer an intriguing look into Saturn's interior, suggesting that a thick layer of helium rain influences the planet's magnetic field. Stabilization of the borafluorene anion with carbenes ScienceDaily: Latest Science News urn:uuid:ec50d785-4555-704a-2e3a-30de8674c6a5 Wed, 05 May 2021 12:05:29 -0500 The incorporation of boron into polycyclic aromatic hydrocarbon systems leads to interesting chromophoric and fluorescing materials for optoelectronics, including organic light-emitting diodes (OLEDS) and field-effect transistors, as well as polymer-based sensors. A research team has now introduced a new anionic organoborane compound. Synthesis of the borafluorene succeeded through the use of carbenes. Process for eliminating unneeded cells may also protect against cancer ScienceDaily: Latest Science News urn:uuid:247c54e1-882d-0029-0fab-a30e77980c70 Wed, 05 May 2021 10:37:31 -0500 Biologists find cell extrusion, a process that helps organisms eliminated unneeded cells, is triggered when cells can't replicate their DNA during cell division. In humans, extrusion may serve as a way for the body to eliminate cancerous or precancerous cells. Stem cells create early human embryo structure in advance for fertility research ScienceDaily: Latest Science News urn:uuid:876093b9-945f-3dcc-2faa-75790143d6f2 Wed, 05 May 2021 10:37:28 -0500 Stem cells have the ability to turn into different types of cell. Now scientists have developed a method to organize lab-grown stem cells into an accurate model of the first stage of human embryo development. Leather-like material created from silk proteins ScienceDaily: Latest Science News urn:uuid:2c6b8939-f2fa-6b4f-510c-34bdaaf36c04 Wed, 05 May 2021 10:37:26 -0500 Engineers have created an environmentally friendly leather alternative made from silk. The material can be printed into different patterns and textures, has similar physical properties to real leather, and can withstand the folding, piercing, and stretching typically used to create leather goods. International study links brain thinning to psychosis ScienceDaily: Latest Science News urn:uuid:1ff1d2b1-6d39-72a0-043a-b280552ba252 Wed, 05 May 2021 10:37:23 -0500 Subtle differences in the shape of the brain that are present in adolescence are associated with the development of psychosis, according to an international team. The 'sobering' results were made using the largest study to date of brain scans in adolescents at risk for psychosis. Targeted methods to control SARS-CoV-2 spread ScienceDaily: Latest Science News urn:uuid:9a1bff65-e985-a6fb-9ffc-3e1f769d5205 Wed, 05 May 2021 10:37:18 -0500 Researchers analyze more palatable alternatives to the kind of social distancing mandates that threw a wrench at how businesses, schools and even family gatherings work. Personalized sweat sensor reliably monitors blood glucose without finger pricks ScienceDaily: Latest Science News urn:uuid:7c2db4cb-43dd-7e1c-b9cb-28e97be82cfd Wed, 05 May 2021 10:37:07 -0500 Many people with diabetes endure multiple, painful finger pricks each day to measure their blood glucose. Now, researchers have developed a device that can measure glucose in sweat with the touch of a fingertip, and then a personalized algorithm provides an accurate estimate of blood glucose levels. Fast changing smells can teach mice about space ScienceDaily: Latest Science News urn:uuid:60c7f173-ebae-bf6c-47eb-d3b656189145 Wed, 05 May 2021 10:37:02 -0500 Researchers have found that mice can sense extremely fast and subtle changes in the structure of odors and use this to guide their behavior. The findings alter the current view on how odors are detected and processed in the mammalian brain. New bonobo genome fine tunes great ape evolution studies ScienceDaily: Latest Science News urn:uuid:609fb652-c343-9eed-6df9-2e6664a2dc53 Wed, 05 May 2021 10:36:59 -0500 A new, high-quality bonobo genome assembly has been constructed. It is allowing scientists to more accurately compare the bonobo genome to that of other great apes - the gorilla, orangutan, chimpanzee - and to the modern human. This analysis is revealing new information about hominid evolution, distinctions between chimps and bonobos and genetic relations among present-day hominids, and predicts a greater fraction of the human genome is genetically closer to chimps and bonobos. A high-tech textile to stay comfortable outdoors ScienceDaily: Latest Science News urn:uuid:2ed1921d-8d22-8d1d-3e35-ef9d8c18bb42 Wed, 05 May 2021 10:14:07 -0500 Clothing, from tank tops to parkas, helps people adapt to temperatures outdoors. But you can only put on or take off so much of it, and fluctuations in weather can render what you are wearing entirely inadequate. Researchers now describe a high-tech alternative: a reversible textile they designed to trap warmth in the cold and reflect it during hot weather, all while generating small amounts of electricity.