- PhysOrg
- 21/6/16 22:15
Scientists have found a dead Asian giant hornet north of Seattle, the first so-called murder hornet discovered in the country this year, federal and state investigators said Wednesday.
Scientists have found a dead Asian giant hornet north of Seattle, the first so-called murder hornet discovered in the country this year, federal and state investigators said Wednesday.
The original Star Trek television series took place in a future when space is the final frontier, but humanity hasn't reached that point quite yet.
A study of young immigrant mothers who are survivors of sex trafficking found that the trauma affected how they parented: It made them overprotective parents in a world perceived to be unsafe, it fueled emotional withdrawal when struggling with stress and mental health symptoms, and was a barrier to building confidence as mothers. Yet, they coped with such challenges through finding meaning in the...
Supermassive black holes, or SMBHs, are black holes with masses that are several million to billion times the mass of our sun. The Milky Way hosts an SMBH with mass a few million times the solar mass. Surprisingly, astrophysical observations show that SMBHs already existed when the universe was very young. For example, a billion solar mass black holes are found when the universe was just 6% of its...
An international team of physicists led by the University of Minnesota has discovered that a unique superconducting metal is more resilient when used as a very thin layer. The research is the first step toward a larger goal of understanding unconventional superconducting states in materials, which could possibly be used in quantum computing in the future.
A new approach to studying conjugated polymers has made it possible for an Army-funded research team to measure, for the first time, the individual molecules' mechanical and kinetic properties during polymerization reaction. The insights gained could lead to more flexible and robust soft electronic materials, such as health monitors and soft robotics.
The long relationships between stars and the planets around them—including the Sun and the Earth—may be even more complex than previously thought. This is one conclusion of a new study involving thousands of stars using NASA's Chandra X-ray Observatory.
Bay Area scientists have captured the real-time electrical activity of a beating heart, using a sheet of graphene to record an optical image—almost like a video camera—of the faint electric fields generated by the rhythmic firing of the heart's muscle cells.
Should zoos display legally protected species that have been smuggled out of their range countries? A new study suggests that a pause and rethink may be needed, as it reports that accredited zoos have acquired a rare and legally protected reptile, the earless monitor lizard endemic to Borneo, without any evidence that the animals were legally exported.
Commonplace pharmaceuticals, such as ibuprofen, can carry with them an inherent flaw in their atomic structure, which pairs the active, beneficial ingredient with a potentially ineffective—or even toxic—counterpart. New research could hold the key to more easily isolating the good while removing the unwanted.
A new paper in the journal Cognition examines the visual complexity of written language and how that complexity has evolved.
Although each organism has a unique genome, a single gene sequence, each individual has many epigenomes. An epigenome consists of chemical compounds and proteins that can bind to DNA and regulate gene action, either by activating or deactivating them or producing organ- or tissue-specific proteins. As it is a highly dynamic material, it can provide a large amount of information to shed light on...
A new rubber band stretches, but then snaps back into its original shape and size. Stretched again, it does the same. But what if the rubber band was made of a material that remembered how it had been stretched? Just as our bones strengthen in response to impact, medical implants or prosthetics composed of such a material could adjust to environmental pressures such as those encountered in...
Scientists at Weill Cornell Medicine have developed a computational technique that greatly increases the resolution of atomic force microscopy, a specialized type of microscope that "feels" the atoms at a surface. The method reveals atomic-level details on proteins and other biological structures under normal physiological conditions, opening a new window on cell biology, virology and other...
The lush forests and more than 7,000 islands of the Philippines hold a rich diversity of life, with 258 bird species who live nowhere but the Philippine archipelago. A new study from University of Utah researchers suggests that due to deforestation and habitat degradation, more bird species may be endangered that previously thought—including species that may not have been discovered yet. The...
An algorithm can predict when narwhals hunt—a task once nearly impossible to gain insight into. Mathematicians and computer scientists at the University of Copenhagen, together with marine biologists in Greenland, have made progress in gathering knowledge about this enigmatic Arctic whale at a time when climate change is pressuring the species.
In the majority of insects, metamorphosis fosters completely different-looking larval and adult stages. For example, adult butterflies are completely different from their larval counterparts, termed caterpillars. This "decoupling" of life stages is thought to allow for adaptation to different environments. Researchers of the University of Bonn now falsified this text book knowledge of evolutionary...
Woods Hole Oceanographic Institution (WHOI) climate modeler Dr. Alan Condron and United States Geological Survey (USGS) research geologist Dr. Jenna Hill have found evidence that massive icebergs from roughly 31,000 years ago drifted more than 5000km (> 3,000 miles) along the eastern United States coast from Northeast Canada all the way to southern Florida. These findings were published today in...
Researchers from the Max-Planck Institute for Terrestrial Microbiology have discovered a surprising asymmetry in the mating behavior of unicellular yeast that emerges solely from molecular differences in pheromone signaling. Their results, published in the current issue of "Science Advances", might shed new light on the evolutionary origins of sexual dimorphism in higher eukaryotes.
For many of us, our smartphone has become our ever-present companion and is usually far more than just a phone. Thanks to the constant availability of online content as well as our reachability through messenger services and social networks via our smartphone, this everyday object's potential to distract us is high—at work too. This is why many employers view the use of smartphones during work...
Researchers from the Singapore University of Technology and Design (SUTD) have demonstrated a technology that rapidly detects pollutants in water by measuring their impacts on swimming microorganisms.
As consumers and corporations alike become more environmentally conscious, the chemical industry is working to find solutions to the plastic waste crisis. One idea is to use biodegradable polymers known as polyhydroxyalkanoates (PHA) as replacements for traditional plastic packaging and other materials. A feature article in Chemical & Engineering News, the weekly newsmagazine of the American...
Transitioning to low-carbon energy production is a big climate challenge to overcome. Many countries are already looking to adopt clean heating solutions more widely, with the International Energy Agency projecting that by 2045 nearly half of global heating will be done with heat pumps. To ensure speedy uptake, governments are likely to offer subsidies to ensure these energy-efficient options...
Researchers at TU Bergakademie Freiberg developed an innovative material from a cultured marine sponge. When the fibers of the sponge react with a copper-containing ammonia solution, such as that found in the electronics industry, the mineral atacamite is formed. This mineral, which occurs only very rarely in nature, attaches itself so strongly to the sponge fibers that a robust material is...
Olives, well-known for their characteristic bitter taste, are in high demand owing to the popularity of the oil they produce. The health benefits of olive oil are well known, ranging from antiviral, anti-cancer, to even anti-hypertensive effects. These benefits are attributed to "oleuropein," the most abundant olive secoiridoid found in olives.