Tech
When the Northern Spotted Owl was protected under the Endangered Species Act in 1990, the primary threat to the species was the loss of the old-growth forest it depends on. However, new research published in The Condor: Ornithological Applications shows that the Northern Spotted Owl population in Washington's Mount Rainier National Park has declined sharply in the past two decades despite the long-term preservation of habitat within the park. The culprit? The spread of Barred Owls, a closely related, competing species that has moved into Spotted Owls' range from the east.
BOSTON - Afflicting more than one billion adults worldwide, migraine is the third most prevalent illness in the world. In addition to severe headache, symptoms of migraine can include nausea, changes in mood, sensitivity to light and sound, as well as visual and auditory hallucinations. People who suffer from migraine report that weather patterns, sleep disturbances, hormonal changes, stress, medications and certain foods or beverages can bring on migraine attacks. However, few studies have evaluated the immediate effects of these suspected triggers.
Good cardiovascular health at age 50 is associated with a lower risk of dementia later in life, finds a study of British adults published by The BMJ today.
The researchers say their findings support public health policies to improve cardiovascular health in middle age to promote later brain health.
Dementia is a progressive disease that can start to develop 15-20 years before any symptoms appear, so identifying factors that might prevent its onset is important.
Researchers at the University of East Anglia have developed guidance to help prescribers and pharmacists decide which patients should use a pill organiser.
The team's previous research has shown that switching to using an organiser can do more harm than good.
Their latest study, published today, reveals that pharmacies are giving out twice as many pill organisers as they were ten years ago.
In a study of commuting workers, the number of different types of food stores available near residences and commute routes--but not near workplaces--had a significant association with body mass index (BMI). Adriana Dornelles of Arizona State University, U.S. presents these findings in the open access journal PLOS ONE on August 7, 2019.
MADISON, Wis. -- Earth's magnetic field seems steady and true -- reliable enough to navigate by.
Yet, largely hidden from daily life, the field drifts, waxes and wanes. The magnetic North Pole is currently careening toward Siberia, which recently forced the Global Positioning System that underlies modern navigation to update its software sooner than expected to account for the shift.
TALLAHASSEE, Fla. -- For decades, overfishing and trawling devastated parts of an underwater mountain range in the Pacific Ocean near Hawaii, wrecking deep-sea corals and destroying much of their ecological community.
But now, after years of federally mandated protection, scientists see signs that this once ecologically fertile area known as the Hawaiian-Emperor Seamount Chain is making a comeback.
What The Study Did: This observational study of Swedish national register data included nearly 87,000 people with attention-deficit/hyperactivity disorder (ADHD) and examined the association of coexisting psychiatric disorders with risk of death.
Authors: Shihua Sun, M.D., of the Karolinska Institutet in Stockholm, Sweden, is the corresponding author.
(doi:10.1001/jamapsychiatry.2019.1944)
New method for analysing complex mixtures improves assignment of elemental compositions of molecules
Using a non-distillable heavy petroleum fraction, number of compositions assigned by University of Warwick is a new world record
Technique has varied applications, including in petroleum, biofuels, proteomics, metabolomics and environmental analysis
NASA's Aqua satellite passed over the Sea of Japan and provided forecasters with a visible image of Tropical Storm Francisco as it was transitioning into an extra-tropical cyclone.
The main components of the Seagull are three large clouds of gas, the most distinctive being Sharpless 2-296, which forms the "wings". Spanning about 100 light-years from one wingtip to the other, Sh2-296 displays glowing material and dark dust lanes weaving amid bright stars.
Tropical Storm Krosa continued on its journey northward in the Northwestern Pacific Ocean when NOAA's NOAA-20 polar orbiting satellite passed overhead and captured a visible image of the strengthening storm in a classic tropical cyclone shape.
The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard NOAA-20 provided a visible image of the storm. There's also a VIIRS instrument aboard the NASA-NOAA Suomi NPP satellite that preceded NOAA-20.
Lekima is now a typhoon and has triggered warnings in the Philippines. NASA's Aqua satellite passed over the Northwestern Pacific Ocean and provided a visible image of the storm that shows a clear eye.
On Aug. 7, the Philippines' PAGASA service issued Tropical cyclone warning signal #1 for the Luzon provinces of Batanes and Babuyan group of islands.
Lower air pollution levels saved an estimated 5,660 lives in New York State in 2012, compared to 2002 levels, according to a new study.
Researchers from the Moscow Institute of Physics and Technology, Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, and Insilico Medicine, USA, determined which genes are affected by mutation that extends lifespan of fruit flies. Comparing gene activity of long-living fly strains to the control insects helped reveal mechanisms of aging and identify drug targets associated with aging-related diseases. The study was published in Scientific Reports.