Latest Science News -- ScienceDaily
An iconic Native American stone tool technology discovered in Arabia
Wed, 05 Aug 2020 16:09:38 EDT
A new article examines fluted projectile points from southern Arabia, detailing production methods and technical aspects that indicate differences in function from the technology of the Americas, despite similarities in form. Findings from experimentation and comparative analysis suggest that highly-skilled, convergent technologies can have varying anthropological implications.
Ammonia sparks unexpected, exotic lightning on Jupiter
Wed, 05 Aug 2020 16:09:26 EDT
NASA's Juno spacecraft -- orbiting and closely observing the planet Jupiter -- has unexpectedly discovered lightning in the planet's upper atmosphere, according to a multi-institutional study.
New Guinea has the world's richest island flora
Wed, 05 Aug 2020 12:40:56 EDT
New Guinea is the most floristically diverse island in the world, an international collaboration has shown. The study presents a list of almost 14,000 plant species, compiled from online catalogues and verified by plant experts. The results are invaluable for research and conservation, and also underline the importance of expert knowledge in the digital era.
Dinosaur relative's genome linked to mammals: Curious genome of ancient reptile
Wed, 05 Aug 2020 12:40:44 EDT
Biologists have sequenced the genome of the tuatara, a lizard-like creature that lives on the islands of New Zealand.
Manifestation of quantum distance in flat band materials
Wed, 05 Aug 2020 12:40:42 EDT
A research team found a way to measure the quantum distance of Bloch states in solids by applying magnetic field.
Gut microbes shape our antibodies before we are infected by pathogens
Wed, 05 Aug 2020 12:40:38 EDT
Because the microbiota is so complex, containing hundreds of different bacterial species, it is not known how the presence of microbes in the intestine shaped the antibodies that are present even before we are challenged by an infection. Researchers have now shown how these beneficial microbes reprogram the repertoire of white blood B cells that produce antibodies and how this helps counter infections.
Sun’s bubble of influence may be shaped like a deflated croissant
Wed, 05 Aug 2020 12:40:29 EDT
Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.
Incorporating solar harvesting into the side of buildings could enhance energy sustainability
Wed, 05 Aug 2020 11:01:30 EDT
If builders could incorporate solar harvesting into the siding of a building, the amount of energy from the grid that a structure would need may significantly decrease. Researchers have demonstrated the potential of wedge-shaped luminescent solar concentrators (LSCs). These efficient modular solar units could easily be hung on the side of a building.
How microbes in 'starter cultures' make fermented sausage tasty
Wed, 05 Aug 2020 11:01:29 EDT
Microbes in 'starter cultures' impart a distinctive tang and longer shelf life to food like sourdough bread, yogurt and kimchi through the process of fermentation. To get a better grasp of how microbes do this in fermented sausages, such as chorizo and pepperoni, researchers show that these tiny organisms change the composition of fatty acids in these meats, contributing to many desirable traits.
New light on how ovarian cancer grows and evolves
Wed, 05 Aug 2020 11:01:25 EDT
Medical researchers provide new insights into how ovarian cancer grows and evolves within a person.
Study clarifies kinship of important plant group
Wed, 05 Aug 2020 11:01:22 EDT
Asterids comprise around 100,000 flowering plants, from heather to tomatoes. Up to now, their family relationships had not yet been fully clarified. A new study has now somewhat closed this knowledge gap. It is the world's most detailed phylogenetic analysis ever conducted for asterids.
Discovery shows promise for treating Huntington's Disease
Wed, 05 Aug 2020 11:01:17 EDT
Scientists have identified a new enzyme called 'TBK1' that plays a central role in regulating the degradation and clearance of the huntingtin protein and introduces chemical modifications that block its aggregation.
Discovery could lead to more potent garlic, boosting flavor and bad breath
Wed, 05 Aug 2020 11:01:15 EDT
Their work could boost the malodorous - yet delicious - characteristics that garlic-lovers the world over savor.
To bond with nature, kids need solitary activities outdoors
Wed, 05 Aug 2020 11:01:13 EDT
A new study found solitary activities like fishing, hunting or exploring outside are key to building strong bonds between children and nature.
Researchers discover predictor of laser treatment success in patients with glaucoma
Wed, 05 Aug 2020 11:01:10 EDT
More than 70 million people worldwide suffer from glaucoma. Treatment options have traditionally included eye drops to reduce the fluid the eye produces or surgery to unclog the eye's drainage. But a new study provides insight into which patients might benefit most from a noninvasive treatment called selective laser trabeculoplasty (SLT), which relieves pressure by using a laser to alter the eye tissue, resulting in better fluid drainage.
Climate change may melt the 'freezers' of pygmy owls and reduce their overwinter survival
Wed, 05 Aug 2020 11:01:06 EDT
Ecologists have discovered that the food hoards pygmy owls collect in nest-boxes ('freezers') for winter rot due to high precipitation caused by heavy autumn rains and if the hoarding has been initiated early in the autumn. The results of the study show that climate change may impair predators' foraging and thus decrease local overwinter survival.
How tumor cells evade the immune defense
Wed, 05 Aug 2020 10:20:38 EDT
Scientists are increasingly trying to use the body's own immune system to fight cancer. A new study now shows the strategies tumor cells use to evade this attack. The method developed for this work contributes to a better understanding of the ''arms race'' between immune defense and disease. The results could help to improve modern therapeutic approaches.
COVID-19 vaccine shows promise in mouse studies
Wed, 05 Aug 2020 10:20:36 EDT
A new study has found that the investigational vaccine known as mRNA-1273 protected mice from infection with SARS-CoV-2, the virus that causes COVID-19.
New strategy against osteoporosis
Wed, 05 Aug 2020 10:20:32 EDT
An international research team has found a new approach that may be able to reduce bone loss in osteoporosis and maintain bone health.
Ancient mountains recorded in Antarctic sandstones reveal potential links to global events
Wed, 05 Aug 2020 10:20:30 EDT
A new analysis of sandstones from Antarctica indicates there may be important links between the generation of mountain belts and major transitions in Earth's atmosphere and oceans. A team of researchers analyzed the chemistry of tiny zircon grains commonly found in the Earth's continental rock record to determine their ages and chemical compositions.