- PhysOrg
- 22/1/13 22:53
A team of astronomers, led by Arizona State University undergraduate student Emma Softich, has discovered a rare pair of brown dwarfs that has the widest separation of any brown dwarf binary system found to date.
A team of astronomers, led by Arizona State University undergraduate student Emma Softich, has discovered a rare pair of brown dwarfs that has the widest separation of any brown dwarf binary system found to date.
Fourteen percent of Aspergillus fumigatus isolates cultured from garden soils were resistant to an agricultural triazole antifungal drug, tebuconazole. Tebuconazole resistance confers resistance to medical triazoles that are used to treat aspergillosis, a lung infection that can be serious, which results from inhalation of A. fumigatus spores. The research is published in Applied and Environmental...
In Vietnam's Mekong Delta, home to about 17 million people, large areas of land have been poldered for the cultivation of crops such as rice and shrimp. At the moment, the delta is on average less than a meter above sea level. But due to accelerated land subsidence, mainly caused by groundwater extraction, a shortage of river sediment, and rising sea levels, researchers from Wageningen University...
At the center of the Milky Way is a supermassive black hole, 4.3 million times bigger than the sun, known as Sagittarius A*. Until recently, it was not clear how much of the matter at the heart of the galaxy was Sagittarius A*. Astronomers measured the velocities of four distant stars around the black hole. The movement of the stars indicates the mass at the galaxy's center is composed almost...
A University of California Riverside (UCR) astronomer and a group of eagle-eyed citizen scientists have discovered a giant gas planet hidden from view by typical stargazing tools.
Specific nuclear proteins act as a glue to pack genetic material in an absurdly small space in the human body. Proteins "gluing" DNA are called linker histones, and hold their secret in their electric charge. They are strongly positively charged, fusing to the strongly negatively charged DNA.
You're going to sweat just thinking about it: For the Northeast United States, the year 2021 was the third warmest—at an average of 49.5 degrees Fahrenheit, which ties the year 2020—since 1895, when consistent record-keeping started, according to the Cornell's Northeast Regional Climate Center (NRCC).
Twisted nanoscale semiconductors manipulate light in a new way, researchers at the University of Bath and the University of Michigan have shown. The effect could be harnessed to accelerate the discovery and development of life-saving medicines as well as photonic technologies.
A punishing mix of heat and humidity that makes outdoor labor difficult and dangerous is causing around 677 billion lost working hours a year around the world, according to a new study Thursday that warns climate change is making it worse.
New research offers an alternative perspective on adaptation to climate threats in Southeast Asia.
In recent years, attention to diversity of images in visual media—TV, movies, stock photos, children's books and more—has increased. But according to a new Indiana University study, at least one area still seriously lacks representation of Black and Brown people: Sex education.
A new review published in the International Journal of Plant Sciences combines disparate studies to synthesize the past, current, and potential future uses of plant specimens as functional trait data sources.
A new paper published in the Journal of the Association of Environmental and Resource Economists provides empirical evidence that risk aversion plays an important role in the coal contracting behavior of US power plants.
Nature keeps a few secrets. While plenty of structures with low symmetry are found in nature, scientists have been confined to high-symmetry designs when synthesizing colloidal crystals, a valuable type of nanomaterial used for chemical and biological sensing and optoelectronic devices.
A team of biologists from the Okinawa Institute of Science and Technology Graduate University (OIST) in Japan and Western Philippines University (WPU) in the Philippines have found two new species of goby fish in Palawan, a Philippine archipelago. The goby fish, both belonging to the genus Rhinogobius, were described recently in the journal Zootaxa.
Arthritis can keep a cat from doing many of the things that kitties love to do. But now there's hope: The first treatment to ease arthritis pain in cats has been approved by the U.S. Food and Drug Administration.
Rivers need water—a fact that may seem ridiculously obvious, but in times of increasing water development, drought, and climate change, the quantity of natural streamflow that remains in river channels is coming into question, especially in the Colorado River basin. Newly published research poses a tough question in these days of falling reservoir levels and high-stakes urban development:...
Organic molecules found in a meteorite that hurtled to Earth from Mars were synthesized during interactions between water and rocks that occurred on the Red Planet about 4 billion years ago, according to new analysis led by Carnegie's Andrew Steele and published by Science.
In one of the first studies of its kind, researchers have gauged how biodiversity loss of birds and mammals will impact plants' chances of adapting to human-induced climate warming.
Electrons flowing through power lines and computers inevitably encounter resistance; when they do, they lose some of their energy, which dissipates as heat. That's why laptops get hot after being used for too long and why the server farms that power the cloud require so much air conditioning to keep the machines from overheating. Likewise, any particles carrying energy tend to lose that energy...
How does a developing plant shoot know how, where, and when to grow? Dividing cells need to pass messages from one another to coordinate growth. In plants, important messages are packaged into RNA, which are sent from cell to cell. By studying the mustard-like plant Arabidopsis thaliana, Cold Spring Harbor Laboratory (CSHL) Professor David Jackson and his team found that RNA messages need a...
Less than 80 years ago, regent honeyeaters ruled Australia's flowering gum forests, with huge raucous flocks roaming from Adelaide to Rockhampton.
MIT physicists and colleagues have discovered the "secret sauce" behind some of the exotic properties of a new quantum material that has transfixed physicists due to those properties, which include superconductivity. Although theorists had predicted the reason for the unusual properties of the material, known as a kagome metal, this is the first time that the phenomenon behind those properties...
While people often talk about "rural America" as if it describes just one way of living, a new study identified five different types of rural communities in Ohio.
Urbanization is a notable threat to bat populations all over the world, especially through artificial light and the reduction of habitat and food supply. If certain conditions are met, some spaces within metropolitan areas can be suitable for bats, so managing these spaces appropriately could contribute to bat conservation. With the help of more than 200 citizen scientists in Berlin, a team of...