Latest Science News -- ScienceDaily
New danger for corals in warming oceans: Metal pollution
Tue, 19 Nov 2019 16:14:57 EST
Metal copper from agricultural runoff and marine paint leaching from boat hulls poses an emerging threat to soft coral sea fans in the waters around Puerto Rico.
Endangered whales react to environmental changes
Tue, 19 Nov 2019 14:39:48 EST
Some 'canaries' are 50 feet long, weigh 70 tons, and are nowhere near a coal mine. But the highly endangered North Atlantic right whale is sending the same kind of message about disruptive change in the environment by rapidly altering its use of important habitat areas off the New England coast.
Technique identifies T cells primed for certain allergies or infections
Tue, 19 Nov 2019 14:32:44 EST
Researchers can now identify T cells reactive to a particular target from a patient's cells, and to perform high-throughput single-cell RNA sequencing of those cells.
Chronic opioid therapy can disrupt sleep, increase risk of sleep disorders
Tue, 19 Nov 2019 14:32:40 EST
Patients and medical providers should be aware that chronic opioid use can interfere with sleep by reducing sleep efficiency and increasing the risk of sleep-disordered breathing.
Daily cannabis use lowers odds of using illicit opioids among people who have chronic pain
Tue, 19 Nov 2019 14:12:33 EST
For those using illicit opioids to manage their chronic pain, cannabis may be a beneficial -- and a less dangerous -- alternative, according to new research.
Evidence in mice that childhood asthma is influenced by the neurotransmitter dopamine
Tue, 19 Nov 2019 13:25:26 EST
Neurons that produce the neurotransmitter dopamine communicate with T cells to enhance allergic inflammation in the lungs of young mice but not older mice, researchers report. The findings potentially explain why asthma susceptibility is higher in children. By highlighting the important role of interactions between the nervous system and the immune system in childhood asthma, the results could lead to new strategies for treating the common chronic disease.
Scientists use modern technology to understand how ochre paint was created in pictographs
Tue, 19 Nov 2019 13:25:15 EST
Ochre was often used as a vivid red paint in ancient rock art known as pictographs. Despite its broad use throughout human history and a modern focus on how the artistic symbolism is interpreted, little research exists on the paint itself and how it was produced. Now, scientists are using electron microscopes to understand how ochre paint was created by hunter-gatherers in North America to produce rock art located at Babine Lake in British Columbia.
Study on surface damage to vehicles traveling at hypersonic speeds
Tue, 19 Nov 2019 12:38:08 EST
Vehicles moving at hypersonic speeds are bombarded with ice crystals and dust particles in the surrounding atmosphere, making the surface material vulnerable to damage such as erosion and sputtering with each tiny collision. Researchers studied this interaction one molecule at a time to understand the processes, then scaled up the data to make it compatible with simulations that require a larger scale.
Bats in attics might be necessary for conservation
Tue, 19 Nov 2019 12:38:02 EST
Researchers investigate and describe the conservation importance of buildings relative to natural, alternative roosts for little brown bats in Yellowstone National Park.
Boredom is on the rise for adolescents, especially girls
Tue, 19 Nov 2019 12:37:50 EST
New research has found that boredom is rising year after year for teens in 8th, 10th, and 12th grades, with greater increases for girls than boys.
Yoga and physical therapy as treatment for chronic lower back pain also improves sleep
Tue, 19 Nov 2019 10:55:56 EST
Yoga and physical therapy (PT) are effective approaches to treating co-occurring sleep disturbance and back pain while reducing the need for medication, according to a new study. The research showed significant improvements in sleep quality lasting 52 weeks after 12 weeks of yoga classes or 1-on-1 PT, which suggests a long-term benefit of these non-pharmacologic approaches.
When stuck in water, bees create a wave and hydrofoil atop it
Tue, 19 Nov 2019 10:55:51 EST
Ever see a bee stuck in a pool? He's surfing to escape.
Husbands' stress increases if wives earn more than 40% of household income
Tue, 19 Nov 2019 10:55:49 EST
Husbands are least stressed when their wives earn up to 40% of household income but they become increasingly uncomfortable as their spouse's wages rise beyond that point.
Scientists find evidence of missing neutron star
Tue, 19 Nov 2019 10:55:45 EST
The leftovers from a spectacular supernova that revolutionized our understanding of how stars end their lives have finally been spotted by astronomers.
Catatonia in Down syndrome
Tue, 19 Nov 2019 10:55:41 EST
Down syndrome, due to an extra chromosome 21, occurs in 250,000 children and adults in the United States, making it the country's most common chromosomal disorder. Inherited heart defects, thyroid cancer, celiac disease and developmental disabilities are common Down syndrome complications. Only recently has catatonia, a behavioral condition marked by new onset immobility, mutism, withdrawal and other behavioral abnormalities, been recognized in Down syndrome.
New species of seaweed uncovered by genetic analyses
Tue, 19 Nov 2019 10:55:39 EST
Genetic analyses have revealed remarkably higher species diversity in common red seaweed than previously assumed. It was thought that there were only five related species of the Gloiopeltis genus worldwide. However, it has been revealed that there are over ten in Japan alone.
First high-speed straight motion of magnetic skyrmion at room temperature demonstrated
Tue, 19 Nov 2019 10:55:37 EST
Researchers have, for the first time, successfully demonstrated a formation and current-induced motion of synthetic antiferromagnetic magnetic skyrmions. The established findings are expected to pave the way towards new functional information processing and storage technologies.
Clean carbon nanotubes with superb properties
Tue, 19 Nov 2019 10:55:30 EST
Scientists have found a new way to make ultra-clean carbon nanotube transistors with superior semiconducting properties.
Rare gas find solves puzzle of Southern Africa's soaring landscape
Tue, 19 Nov 2019 10:55:28 EST
The discovery of gases released from deep beneath the Earth's crust could help to explain Southern Africa's unusual landscape, a study suggests.
Unlocking the secrets of badger dispersal to minimize the spread of bovine TB
Tue, 19 Nov 2019 10:55:22 EST
By understanding how, when, and why badgers move from one social group to another, researchers hope information gleaned from GPS devices will help them tailor vaccination programs to reduce the spread of bovine tuberculosis.