- ScienceDaily
- 20/9/15 21:58
A new study describes the development of a refining process that scientists deem a superior method to help produce better dietary omega-3 health and dietary supplements containing fish oil.
A new study describes the development of a refining process that scientists deem a superior method to help produce better dietary omega-3 health and dietary supplements containing fish oil.
Researchers discovered that the SARS-CoV-2 virus can't grab hold of cell receptor ACE2 without a carbohydrate called heparan sulfate, which is also found on lung cell surfaces -- disrupting that interaction with a repurposed drug may help treat COVID-19.
When early humans began to travel out of Africa and spread into Eurasia over a hundred thousand years ago, a fertile region around the eastern Mediterranean Sea called the Levant served as a critical gateway between northern Africa and Eurasia. A new study shows that the existence of that oasis depended almost entirely on something we almost never think about: dust.
Researchers use discarded wound dressings as a novel and non-invasive way to study the mechanisms that promote healing.
Scientists have found evidence of hot springs near sites where ancient hominids settled, long before the control of fire.
Older people without cognitive problems who experience a fall may have undetected neurodegeneration in their brains that puts them at high risk of developing Alzheimer's dementia, according to a new study.
'Sub-nanometer' particles (SNPs) are very popular because of their diverse applications, but technical difficulties in their synthesis has hindered research in this field. Scientists used an 'atom-hybridization method' to overcome this barrier they developed to study the reactivity of alloy SNPs made from three coinage metal elements. Their findings are an important step in improving the knowledge...
What causes some people to develop chronic diseases such as rheumatoid arthritis, cancer and metabolic syndrome while others stay healthy? A major clue could be found in their gut microbiome -- the trillions of microbes living inside the digestive system that regulate various bodily functions.
Researchers have identified the specific type of immune cell that induces brain inflammation in herpes simplex virus (HSV) encephalitis. Crucially, they have also determined the signalling protein that calls this immune cell into the brain from the bloodstream. The findings could aid the development of targeted treatments for the brain infection, which is the most common cause of viral...
Signals sent from the retina to the brain have a lot of background noise, yet we see the world clearly. Researchers show that to achieve visual clarity the brain must accurately measure how this noise is distributed across neurons when processing the signals sent down the optic nerve. These results are likely to shape the design of future retinal prosthetics and other brain-machine interfaces.
Human white blood cells, known as leukocytes, swim using a newly described mechanism called molecular paddling, researchers report. This microswimming mechanism could explain how both immune cells and cancer cells migrate in various fluid-filled niches in the body, for good or for harm.
Scientists developed dLight1, a single fluorescent protein-based biosensor. This sensor allows high resolution, real-time imaging of the spatial and temporal release of dopamine in live animals. Now, the team expanded the color spectrum of dLight1 to YdLight1 and RdLight1. The increased light penetration and imaging depth of these variants provide enhanced dopamine signal quality allowing...
Scientists have investigated the influence of environmental variability on the behavioral repertoires of 144 social groups. The scientists found that chimpanzees living further away from historical forest refugia, under more seasonal conditions, and found in savannah woodland rather than closed forested habitats, were more likely to exhibit a larger set of behaviors.
While scientists are eager to study the red planet's soils for signs of life, researchers must ponder a considerable new challenge: Acidic fluids - which once flowed on the Martian surface - may have destroyed biological evidence hidden within Mars' iron-rich clays, according to researchers.
New research finds that after a night of shorter sleep, people react more emotionally to stressful events the next day -- and they don't find as much joy in the good things. This has important health implications: previous research shows that being unable to maintain positive emotions in the face of stress puts people at risk of inflammation and even an earlier death.
CardioClusters use three types of cells to reduce scar tissue and improve function by integrating into and persisting within damaged heart tissue.
A genetic predisposition to late-onset Alzheimer's disease affects how the brains of young adults cope with certain memory tasks. Researchers find are based on studies with magnetic resonance imaging in individuals at the age of about 20 years. The scientists suspect that the observed effects could be related to very early disease processes.
The ability to move is key for bacteria like some strains of salmonella and E. coli to efficiently spread infections. They can propel themselves forward using threads, known as flagella, powered by the flagellar rotary motor. But how this rotary motor is powered has been a mystery among scientists. Now, researchers show that the bacterial flagellar motor is powered by yet another even tinier,...
A new role for Casein Kinase-1 on RNF43 is identified.
Quantum technology holds great promise: Quantum computers are expected to revolutionize database searches, AI systems, and computational simulations. Today already, quantum cryptography can guarantee secure data transfer, albeit with limitations. The greatest possible compatibility with current silicon-based electronics will be a key advantage. And that is precisely where physicists have made...
The forest canopy, the closed vegetation cover consisting of treetops, is rapidly declining according to new research. The team used satellite images, to create the first high-resolution map of canopy openings in Europe's forests and reached the conclusion that the canopy of more than 36 million forest areas has been lost over the past 30 years.
Compared with other migratory birds, the common swift follows a very unusual pattern when it migrates from the breeding areas in Europe to its wintering locations south of the Sahara. This is what researchers have observed in a major eleven-year international study of the birds.
Researchers have discovered that a new material can act as a super-fast magnetic switch. When struck by successive ultra-short laser pulses it exhibits 'toggle switching' that could increase the capacity of the global fiber optic cable network by an order of magnitude.
They are some of the most iconic and unique-looking creatures in our oceans. While some may think they look a bit 'odd,' one thing researchers agree on is that little is known about hammerhead sharks. Thanks to a team of researchers, that's all changing.
West Nile virus spreads most efficiently in the US at temperatures between 24-25 degrees Celsius (75.2-77 degrees Fahrenheit), a new study shows.