Archaeologists Find 2,300-Year-Old Bark Shield in England
A unique bark shield from the Iron Age has been discovered by a team of archaeologists from the University of Leicester and elsewhere. The bark shield was found in 2015 at the Iron Age site of Everards Meadows near Enderby in Leicestershire. The object, which measured 26.3 x 14.6 inches (67 x 37 cm) in [...]
Hubble Captures Stunning Image of Messier 59
The NASA/ESA Hubble Space Telescope has produced this beautiful image of an elliptical galaxy called Messier 59. Messier 59, also known as M59 or NGC 4621, lies some 50 million light-years away in the equatorial constellation Virgo. German astronomer Johann Gottfried Koehler discovered this galaxy and the nearby Messier 60 in the spring of 1779 [...]
New Nerve Stimulation Therapy Could Help Patients with Acute Ischemic Stroke
In a study involving 1,000 patients from 18 countries, an international team of researchers found evidence that a technique called active nerve cell cluster stimulation reduced the patients’ degree of disability three months after they suffered an acute cortical ischemic stroke. The first treatment for ischemic stroke, the clot-dissolving drug alteplase, was approved by the [...]
Paper stickers to monitor pathogens are more effective than swabs
Using paper stickers to collect pathogens on surfaces where antisepsis is required, such as in food processing plants, is easier, and less expensive than swabbing, yet similarly sensitive.
Don't overdo omega-6 fat consumption during pregnancy
New research showed that eating a diet with three times the recommended daily intake of linoleic acid might be harmful in pregnancy.
A gut check for heart failure patients
Heart failure patients who consume more dietary fiber tend to have healthier gut bacteria, which is associated with reduced risk of death or need of a heart transplant.
Growing up high: Neurobiological consequences of adolescent cannabis use
About one in five Canadian adolescents uses cannabis. Neuroscientists have been researching the effects of cannabis on the adolescent brain. Adolescence is associated with the maturation of cognitive functions, such as working memory, decision-making, impulsivity control and motivation, and the research presented suggests cannabis could have long-lasting, but possibly reversible effects on these.
Weekly pharmacy visits boost drug adherence and quality of life in heart failure patients
Elderly patients with heart failure who see a pharmacist once a week are more likely to take their tablets and be active in daily life, according to new results.
In vitro fertilization linked to deadly heart disease in pregnancy
Women undergoing fertility treatment should urgently see their doctor if they have heart failure symptoms, according to a new study. Shortness of breath, swollen legs and waking up in the night to urinate could be warning signs of a pregnancy-associated heart failure called peripartum cardiomyopathy (PPCM).
New leaf shapes for thale cress
Scientists have determined how key developmental genes influence growth of cells to produce such differences in leaf form. The researchers were able to make thale cress, which typically produces simple leaves, grow leaves similar in complexity to those of hairy bittercress, a related plant with complex leaves.
Building a better salt trap: Scientists synthesize a molecular 'cage' to trap chloride
Researchers have synthesized a powerful new molecule to trap chloride salts. The technology has the potential to reduce its seepage into freshwater systems, which is a threat to drinkable water around the globe.
Scientists (dis)solve a century-long mystery to treat asthma and airway inflammation
Research groups have solved a century-long puzzle about the presence of protein crystals in asthma. Normally, proteins do not crystallize in the body, but there are some instances where this process does occur.
Aftershocks of 1959 earthquake rocked Yellowstone in 2017-18
A swarm of more than 3,000 small earthquakes in the Maple Creek area (in Yellowstone National Park but outside of the Yellowstone volcano caldera) between June 2017 and March 2018 are, at least in part, aftershocks of the 1959 quake.
Older male crickets attract more females -- but mate less
Older male crickets are better at getting females to live with them -- but they mate less than younger rivals once they find a partner.
Mites and ticks are close relatives, new research shows
Scientists have reconstructed the evolutionary history of the chelicerates, the mega-diverse group of 110,000 arthropods that includes spiders, scorpions, mites and ticks.
Climate change affects the genetic diversity of a species
What effects does climate change have on the genetic diversity of living organisms? In a new study, researchers studied the genome of the alpine marmot. Results were unexpected: the species was found to be the least genetically diverse of any wild mammal studied to date. The alpine marmot has lost its genetic diversity during ice-age related climate events and been unable to recover its diversity since.
Simple test can tell if you're stressed out
Researchers have developed a new test that can easily and simply measure common stress hormones using sweat, blood, urine or saliva. Eventually, they hope to turn their ideas into a simple device that patients can use at home to monitor their health.
How corn's ancient ancestor rejects crossbreeding
New research elucidates the mechanism that keeps maize distinct from its ancient ancestor grass, teosinte.
How to prevent mosquitofish from spreading in water ecosystems
Preventing the introduction of the mosquitofish and removing its population are the most effective actions to control the dispersal of this exotic fish in ponds and lakes, according to a new study.
Finding the cause of capacity loss in a metal-oxide battery material
Scientists studying a lithium-ion battery with an iron-oxide electrode as it charged and discharged over 100 cycles found that the loss is due to a buildup of lithium oxide and decomposition of the medium through which lithium ions flow.
Top science news
Scientists Wanted: Recruited by Juul, Many Researchers Say No
Juul needs good science to prove to the F.D.A. that its e-cigarettes offer more benefits than risks. Some researchers say they are loath to take the company’s money.