Culture
Scientists using sophisticated genetic analysis techniques have found that some fish are better than others at coping with heatwaves.
A world-first study tracked how wild fish populations responded to a severe marine heatwave, focussing on the 2016 event that killed a third of the Great Barrier Reef corals.
A puzzling modification of DNA that is common in bacteria is not present in humans or other mammals. This has been shown in a new study by scientists at Linköping University in Sweden, published in Science Advances. The study shows that detection of the epigenetic mark 6mdA in animals was probably the result of limitations of the technology used and bacterial contamination of samples.
WASHINGTON, DC--A groundbreaking study by Resources for the Future (RFF) researchers, to be published in Science Advances March 18, 2020 at 2:00 pm EDT, shows that national monuments have had mostly positive effects on local economies in the American West.
Study authors Margaret Walls, Patrick Lee, and Matthew Ashenfarb highlighted the following key findings:
After the monuments were designated, the number of nearby business establishments and jobs increased by an average of 10 percent and 8 percent, respectively, compared to "control" areas.
A recent study in mice led a team of researchers in Japan to believe that psychosis may be caused by problems with specialized nerve cells deep within the brain, as well as a certain kind of learning behavior. The researchers hope this could provide insight into the emergence of delusions in patients with psychosis or schizophrenia with the aim of finding ways to help them.
The oldest fossil of a modern bird yet found, dating from the age of dinosaurs, has been identified by an international team of palaeontologists.
The spectacular fossil, affectionately nicknamed the 'Wonderchicken', includes a nearly complete skull, hidden inside nondescript pieces of rock, and dates from less than one million years before the asteroid impact which eliminated all large dinosaurs.
Two new studies from Karolinska Institutet in Sweden underscore health risks associated with childhood obesity. Children with obesity have a three times higher risk of mortality in early adulthood compared with children in the general population and are more likely to suffer from anxiety and depression. The findings, published in PLOS Medicine and BMC Medicine, highlight the need to identify specific risk factors for children with obesity and find preventative tools, according to the researchers.
National monuments in the U.S. West increase the average number of establishments and jobs near the monument and increase the average establishment growth rate, according to a new study by Margaret Walls and colleagues. At the same time, monument designation has no effect on the number of jobs that existed before the monument, and has no effect on mining, forestry and other traditional industries that use public lands. The findings suggest that fears of local economic restriction after a national monument designation are unwarranted.
MINNEAPOLIS - Children and teens with family members with amyotrophic lateral sclerosis, or ALS, help with bathing, dressing, eating and all types of caregiving activities, yet they may not have training or enough information about the disease, according to a study published in the March 18, 2020, online issue of Neurology®, the medical journal of the American Academy of Neurology.
For women being treated for infertility, studies show that in-person counseling decreases anxiety, depression and stress and leads to higher rates of pregnancy.
But for a variety of reasons -- including stigma, skepticism about efficacy, cost, travel challenges and difficulty scheduling appointments -- many women in treatment don't seek additional psychological help and often give up on their dream of having a child.
Brownian motion describes the random movement of particles in fluids, however, this revolutionary model only works when a fluid is static, or at equilibrium.
In real-life environments, fluids often contain particles that move by themselves, such as tiny swimming microorganisms. These self-propelled swimmers can cause movement or stirring in the fluid, which drives it away from equilibrium.
Berkeley -- Like humans, cells can be easily influenced by peer pressure.
Take a neural stem cell in the brain: Whether this cell remains a stem cell or differentiates into a fully formed brain cell is ultimately determined by a complex set of molecular messages the cell receives from countless neighbors. Understanding these messages is key for scientists hoping to harness these stem cells to treat neurological conditions like Alzheimer's or Parkinson's.
The identification of an insect-specific metal-sensing receptor in the gut lining highlights a possible new way to curb populations of disease-transmitting insects such as mosquitoes.
In this new study led by the MRC London Institute of Medical Sciences, researchers discovered that removal of this nutrient-sensing receptor called Hodor was fatal in Anopheles mosquitoes as the insects did not make it past their larval stage.
It isn't easy being a loner -- someone who resists the pull of the crowd, who marches to their own drummer.
Citrus greening, also called Huanglongbing (HLB), is devastating the citrus industry. Florida alone has experienced a 50 to 75 percent reduction in citrus production. There are no resistant varieties of citrus available and limited disease control measures.
Last April, the Event Horizon Telescope (EHT) sparked international excitement when it unveiled the first image of a black hole. Today, a team of researchers have published new calculations that predict a striking and intricate substructure within black hole images from extreme gravitational light bending.