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Latest Science News -- ScienceDaily

Published: Jun 19, 2021 12:00:02 AM
  • Jun 18, 2021 7:35:18 PM
    Scientists have long known the brain's hippocampus is crucial for long-term memory. Now a new study has found the hippocampus also plays a role in short-term memory and helps guide decision-making. The findings shed light on how the hippocampus contributes to memory and exploration, potentially leading to therapies that restore hippocampal function, which is impacted in memory-related aging and neurodegenerative diseases such as dementia, the study authors said.
  • Jun 18, 2021 7:35:12 PM
    A research group of scientists from North America, Europe and Africa concluded that animals' ability to respond to climate change likely depends on how well they modify their habitats, such as nests and burrows.
  • Jun 18, 2021 5:41:09 PM
    The visual thalamus is classically known to relay visual stimuli coming from the retina to the cerebral cortex. Researchers now show that although neurons in the mouse visual thalamus connect to both eyes, they establish strong functional connections only with one retina. These results settle partly contradictory results of earlier studies and demonstrate how important it can be to complement structural data with functional analyses.
  • Jun 18, 2021 5:40:38 PM
    People who are physically active during childhood have higher cognitive functions in later life. Participants who exercised when they were children did better on cognitive tests regardless of their current age. However, no such relationship was found between task performance and post-childhood exercise -- suggesting that exercise during childhood is particularly important for brain development and long-term cognitive health.
  • Jun 18, 2021 5:40:33 PM
    Footprints from at least six different species of dinosaur -- thought to be the very last dinosaurs to walk on UK soil 110 million years ago -- have been found in Kent.
  • Jun 18, 2021 5:40:22 PM
    Fruit flies have found at least two solutions to the problem of sorting their sex chromosomes: a matter of life and death.
  • Jun 18, 2021 5:40:09 PM
    Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a 'pulse,' according to a new study.
  • Jun 18, 2021 5:40:02 PM
    In a new study, researchers determined that the common blood pressure medication, losartan, is not effective in reducing hospitalization for mildly-ill COVID-19 outpatients.
  • Jun 18, 2021 5:39:59 PM
    It could be a milestone on the path to detecting life on other planets: Scientists detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground. The measurement technology could also open up opportunities for remote sensing of the Earth.
  • Jun 18, 2021 5:39:57 PM
    A science-based intervention relieved hiccups for 92% of 249 users who self-reported the effectiveness of the tool. =
  • Jun 18, 2021 5:39:52 PM
    Lake Victoria, which came under the spotlight in 2004 by the documentary 'Darwin's nightmare', is not only suffering from the introduction and commercialization of the Nile perch: A study has highlighted other worrying phenomena, particularly climatic ones, which have an equally important impact on the quality of the lake's waters.
  • Jun 18, 2021 1:17:21 PM
    It is possible to re-create a bird's song by reading only its brain activity, shows a first proof-of-concept study. The researchers were able to reproduce the songbird's complex vocalizations down to the pitch, volume and timbre of the original. The study is a first step towards developing vocal prostheses for humans who have lost the ability to speak.
  • Jun 18, 2021 1:17:09 PM
    Forest fires have crept higher up mountains over the past few decades, scorching areas previously too wet to burn, according to researchers. As wildfires advance uphill, a staggering 11% of all Western US forests are now at risk.
  • Jun 18, 2021 1:17:03 PM
    In a bid to find or refine laboratory research models for cancer that better compare with what happens in living people, scientists report they have developed a new computer-based technique showing that human cancer cells grown in culture dishes are the least genetically similar to their human sources.
  • Jun 18, 2021 1:16:57 PM
    Researchers improve energy density in a novel electric vehicle battery - a step toward a more cost-effective, easily recycled battery that would allow EVs to travel farther and charge faster at a low cost.
  • Jun 18, 2021 1:16:45 PM
    In a new study using variant virus recovered from one of the original travelers, researchers in the US and Japan have found that vaccination with an mRNA vaccine induces antibody responses that would protect humans from infection with the gamma/P.1 variant.
  • Jun 18, 2021 1:16:40 PM
    How much do traditional practices contribute to the protection of local biodiversity? Why and how are sacred groves locally valued and protected, and how can this be promoted and harnessed for environmental protection? Researchers have examined the backgrounds of this form of local environmental protection in Baneh County, Iran.
  • Jun 18, 2021 1:16:37 PM
    Researchers have found SARS-CoV-2 in the testes of infected hamsters. The authors think this may represent what could occur in men with mild to moderate COVID-19 disease.
  • Jun 18, 2021 1:16:34 PM
    The surface of a material often has properties that are very different from the properties within the material. An international research team has now succeeded in investigating the surfaces of transparent crystals using powerful irradiation from lasers.
  • Jun 18, 2021 1:16:30 PM
    The combination of sea level rise, tides, storm surge and waves has increased the overtopping of natural and artificial coastal protection by nearly 50% in the last two decades.
  • Jun 18, 2021 1:16:28 PM
    For the most accurate accounting of a product's environmental impact, scientists look at the product's entire life cycle, from cradle to grave. It's a grand calculation known as a life cycle assessment (LCA), and greenhouse gas emissions are a key component. For corn ethanol, most greenhouse gas emissions can be mapped to the fuel's production, transportation, and combustion, but a large portion of the greenhouse gas calculation can be traced right back to the farm.
  • Jun 18, 2021 1:16:25 PM
    An incredibly light new material can reduce aircraft engine noise and improve passenger comfort. The graphene oxide-polyvinyl alcohol aerogel weighs just 2.1kg per cubic meter, making it the lightest sound insulation ever manufactured.
  • Jun 17, 2021 8:37:09 PM
    A new study finds that convalescent plasma from recovered COVID-19 patients can dramatically improve likelihood of survival among blood cancer patients hospitalized with the virus. The therapy involves transfusing plasma from people who have recovered from COVID-19 into patients who have leukemia, lymphoma or other blood cancers and are hospitalized with the viral infection.
  • Jun 17, 2021 8:37:03 PM
    By cleverly combining complementary sequencing techniques, researchers have deepened our understanding of the function of known RNA molecules and discovered thousands of new RNAs. A better understanding of our transcriptome is essential to better understand disease processes and uncover novel genes that may serve as therapeutic targets or biomarkers.
  • Jun 17, 2021 8:37:01 PM
    A new article introduces a rapid assessment framework that can be used as a guide to make conservation and nature-based solutions more robust to future climate.
  • Jun 17, 2021 8:36:58 PM
    The depths of the Black Sea store comparatively large amounts of organic carbon. A research team has now presented a new hypothesis as to why organic compounds accumulate in this semi-enclosed sea and other oxygen-depleted waters. Reactions with hydrogen sulfide play an important role in stabilizing carbon compounds, the researchers posit. This negative feedback in the climate system could counteract global warming over geological periods.
  • Jun 17, 2021 8:36:55 PM
    Babies born by Cesarean section don't have the same healthy bacteria as those born vaginally, but a new study finds that these natural bacteria can be restored.
  • Jun 17, 2021 8:36:52 PM
    A research team has developed bio-inks for biosensors that could help localize critical regions in tissues and organs during surgical operations.
  • Jun 17, 2021 8:35:45 PM
    New research shows that nearly 28% of all electric scooters reported injuries were head and neck injuries.
  • Jun 17, 2021 8:35:13 PM
    Nanodecoys made from human lung spheroid cells (LSCs) can bind to and neutralize SARS-CoV-2, promoting viral clearance and reducing lung injury in a macaque model of COVID-19. By mimicking the receptor that the virus binds to rather than targeting the virus itself, nanodecoy therapy could remain effective against emerging variants of the virus.
  • Jun 17, 2021 8:34:58 PM
    With sorghum poised to become an important crop grown by Pennsylvania farmers, researchers tested more than 150 germplasm lines of the plant for resistance to a fungus likely to hamper its production.
  • Jun 17, 2021 6:58:11 PM
    Physicists have used ultrashort laser pulses to probe the dynamics of photoelectron emission in tungsten crystals.
  • Jun 17, 2021 6:58:08 PM
    A long-term passive rewilding study has shown that natural woodland regeneration could make a significant contribution to meeting the UK's ambitious tree planting targets - potentially at no cost and within relatively short timescales. The research found natural growth due to seed dispersal by birds, mammals and wind can produce biodiverse and resilient woodland.
  • Jun 17, 2021 6:36:53 PM
    The yellow fever mosquito spreads multiple untreatable viruses in humans and is primarily controlled using a pesticide called permethrin. However, many mosquitoes are evolving resistance to the pesticide. A new study identifies mutations linked to different permethrin resistance strategies, which threaten our ability to control disease outbreaks.
  • Jun 17, 2021 6:36:50 PM
    When animals are hot, they eat less. This potentially fatal phenomenon has been largely overlooked in wild animals, explain researchers.
  • Jun 17, 2021 6:36:44 PM
    Once thought to be extinct, lobe-finned coelacanths are enormous fish that live deep in the ocean. Now, researchers have evidence that, in addition to their impressive size, coelacanths also can live for an impressively long time -- perhaps nearly a century.
  • Jun 17, 2021 6:36:39 PM
    Many diseases caused by a dysregulated immune system, such as allergies, asthma and autoimmunity, can be traced back to events in the first few months after birth. To date, the mechanisms behind the development of the immune system have not been fully understood. Now, researchers show a connection between breast milk, beneficial gut bacteria and the development of the immune system.
  • Jun 17, 2021 6:36:25 PM
    To the human eye, most stationary objects appear to be just that -- still, and completely at rest. Yet if we were handed a quantum lens, allowing us to see objects at the scale of individual atoms, what was an apple sitting idly on our desk would appear as a teeming collection of vibrating particles, very much in motion.
  • Jun 17, 2021 6:36:20 PM
    A new treatment approach focused on fixing cell damage, rather than fighting the virus directly, is effective against SARS-CoV-2 in lab models. If found safe for human use, this anti-viral treatment would make COVID-19 symptoms milder and speed up recovery times.
  • Jun 17, 2021 5:38:26 PM
    The glaciers of Nanga Parbat - one of the highest mountains in the world - have been shrinking slightly but continually since the 1930s. This loss in surface area is evidenced by a long-term study. The geographers combined historical photographs, surveys, and topographical maps with current data, which allowed them to show glacial changes for this massif in the north-western Himalaya as far back as the mid-1800s.
  • Jun 17, 2021 5:38:06 PM
    A faster method for collecting pure malaria parasites from infected mosquitos could accelerate the development of new, more potent malaria vaccines.
  • Jun 17, 2021 5:38:04 PM
    Nitrogen from agriculture, vehicle emissions and industry is endangering butterflies in Switzerland. The element is deposited in the soil via the air and has an impact on vegetation -- to the detriment of the butterflies, as researchers have discovered.
  • Jun 17, 2021 5:38:01 PM
    Researchers demonstrate highly chirped pulses created by a using a spectral filter in a Kerr resonator, enabling them to widen a laser pulse wavefront by separating the beam's colors. The chirped pulses remain stable even with more than 90% energy loss.
  • Jun 17, 2021 5:37:56 PM
    Chronic stress could be one reason why some animal orphans have shorter lives and less offspring. Researchers assessed if, as orphan humans, orphan chimpanzees are exposed to chronic stress. They found that maternal loss is stressful but orphans experience little chronic stress since stress hormones return to normal after two years, possibly thanks to care provided by other chimpanzees.
  • Jun 17, 2021 5:37:51 PM
    Peatlands are an important ecosystem that contribute to the regulation of the atmospheric carbon cycle. A multidisciplinary group of researchers investigated the climate response of a permafrost peatland located in Russia during the past 3,000 years. Unexpectedly, the group found that a cool climate period, which resulted in the formation of permafrost in northern peatlands, had a positive, or warming, effect on the climate.
  • Jun 17, 2021 3:55:45 PM
    Outside the breeding season many parrots live in dynamic social systems in which individuals travel and forage. These flocks are characterized by frequent changes in composition and their dynamic nature entails a unique set of challenges, such as potential increased aggression and competition for resources. Therefore, the ability to selectively choose the right flock members may be essential to maximize individual fitness.
  • Jun 17, 2021 3:55:43 PM
    A destructive pest beetle is edging closer to Australia as biological controls fail, destroying home gardens, plantations and biodiversity as they surge through nearby Pacific islands.
  • Jun 17, 2021 3:55:36 PM
    Using neural networks, researchers have developed a new method to search the human genome for beneficial mutations from Neanderthals and other archaic humans. These humans are known to have interbred with modern humans, but the overall fate of the genetic material inherited from them is still largely unknown. Among others, the researchers found previously unreported mutations involved in core pathways in metabolism, blood-related diseases and immunity.
  • Jun 17, 2021 3:55:33 PM
    The most accurate distance measurement yet of ultra-diffuse galaxy (UDG) NGC1052-DF2 (DF2) confirms beyond any shadow of a doubt that it is lacking in dark matter. The newly measured distance of 22.1 +/-1.2 megaparsecs are based on 40 orbits of NASA's Hubble Space Telescope, with imaging by the Advanced Camera for Surveys and a 'tip of the red giant branch' (TRGB) analysis.
  • Jun 17, 2021 3:55:23 PM
    Researchers develop technology to introduce genes into single cells in a targeted manner.
  • Jun 17, 2021 3:55:20 PM
    A new species of nematode (roundworm), named Cryptaphelenchus abietis, was isolated from bark beetles from a dead log collected in Nagano, Japan. The females of this newly described species can be identified based on the size of the post-uterine sac and the conical tail with an elongate posterior part. The males have seven genital papillae and a narrow bursal flap-like extension. The culturability of this species means it may be useful in further nematode research.
  • Jun 17, 2021 3:55:15 PM
    Bacteria from an Indian landfill could help eliminate contaminated chemicals. The focus is on pesticides such as lindane or brominated flame retardants, which accumulate in nature and in food chains. Researchers used these bacteria to generate enzymes that can break down these dangerous chemicals.
  • Jun 17, 2021 3:52:32 PM
    Scientists have developed a new method that improves dispensing of viscoelastic fluids - a vital process for circuit board production, 3D printing and other industrial applications. The scientists found that twisting these liquid bridges breaks them in a quicker and cleaner way than the conventional method of stretching them.
  • Jun 17, 2021 2:36:12 PM
    Researchers have created an intelligent nanopore system sensitive enough to detect single SARS-CoV-2 virus particles. By training a machine-learning algorithm, the platform was able to identify between various coronaviruses in just five minutes. This work may lead to fast and accurate point-of-care testing for COVID and other communicable diseases.
  • Jun 17, 2021 2:12:52 PM
    Researchers have developed a prototype device that could potentially diagnose pregnancy complications by monitoring the oxygen level of the placenta. The device sends near-infrared light through the pregnant person's abdomen to measure oxygen levels in the arterial and venous network in the placenta.
  • Jun 17, 2021 2:12:50 PM
    Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) to study the young star Elias 2-27 have confirmed that gravitational instabilities play a key role in planet formation, and have for the first time directly measured the mass of protoplanetary disks using gas velocity data, potentially unlocking one of the mysteries of planet formation.
  • Jun 17, 2021 2:12:47 PM
    Researchers now have a better understanding of the mechanism underlying how certain bacteria can transfer genetic material across taxonomic kingdoms, including to fungi and protists. Their work could have applications in changing how bacteria perform certain functions or react to changes in their environment.
  • Jun 17, 2021 2:12:44 PM
    Since 2005, the guidelines for the care of unconscious cardiac arrest patients have been to cool the body temperature down to 33 degrees Celsius. A large, randomized clinical trial has now shown that this treatment does not improve survival.
  • Jun 17, 2021 2:12:41 PM
    Conservationists have long warned of the dangers associated with bears becoming habituated to life in urban areas. Yet, it appears the message hasn't gotten through to everyone. News reports continue to cover seemingly similar situations -- a foraging bear enters a neighbourhood, easily finds high-value food and refuses to leave. The story often ends with conservation officers being forced to euthanize the animal for public safety purposes.
  • Jun 17, 2021 2:12:38 PM
    Inhibiting necroptosis, a form of cell death, could yield a new treatment approach for chronic obstructive pulmonary disease (COPD), an inflammatory lung condition also known as emphysema, new research shows. The study revealed elevated levels of necroptosis in patients with COPD. By inhibiting necroptosis activity in the lung tissue of COPD patients the researchers found a significant reduction in chronic airway inflammation and lung damage.