Researchers in Russia have developed a new method for the industrial synthesis of an ultra-hard material that exceeds diamond in hardness. An article recently published in Carbon describes in detail a method that allows for the synthesis of ultrahard fullerite, a polymer composed of fullerenes, or spherical molecules made of carbon atoms.
Lamprey—slimy, eel-like parasitic fish with tooth-riddled, jawless sucking mouths—are rather...
Researchers have discovered that a known quality control mechanism in human, animal and plant cells is active against viruses. They think this new form of a so-called “innate immune defense” might represent one of the oldest defense mechanisms against viruses in evolutionary history.
When a segment of a major fault line goes quiet, it can mean one of two things: The “seismic gap” may simply be inactive, or the segment may be a source of potential earthquakes, quietly building tension over decades until an inevitable seismic release. Researchers from Massachusetts Institute of Technology and Turkey have found evidence for both types of behavior on different segments of the North Anatolian Fault.
During the six-day IMTS manufacturing technology show in Chicago this week, the “Strati” will be the first vehicle printed in one piece using direct digital manufacturing. The process will take more than 44 hours of print time. A team including Local Motors, Cincinnati Inc. and Oak Ridge National Laboratory will then rapidly assemble it for a historic first set for Saturday.
Biologists claim that humans can perceive and distinguish a trillion different odors, but little is known about the underlying chemical processes involved. Biochemists at The City College of New York have found an unexpected chemical strategy employed by the mammalian nose to detect chemicals known as aldehydes.
Some people avoid risks at all costs, while others will put their wealth, health and safety at risk without a thought. Researchers at Yale School of Medicine have found that the volume of the parietal cortex in the brain could predict where people fall on the risk-taking spectrum.
A high-tech survey reveals that there is more to Stonehenge than meets the eye, finding previously unknown monuments. Researchers have produced digital maps of what's beneath the World Heritage Site, using ground-penetrating radar, high-resolution magnetometers and other techniques to peer deep into the soil. And they have found some surprises.
A team of scientists led by Carnegie's Jacqueline Faherty has discovered the first evidence of water ice clouds on an object outside of our own Solar System. Water ice clouds exist on our own gas giant planets, but have not been seen outside of the planets orbiting our Sun until now.
In the typical textbook picture, volcanoes, such as those that are forming the Hawaiian islands, erupt when magma gushes out as narrow jets from deep inside Earth. But that picture is wrong, according to a new study from researchers at Caltech and the Univ. of Miami. New seismology data are now confirming that such narrow jets don't actually exist.
Dr. John Carr, a scientist at the U.S. Naval Research Laboratory, is part of an international team that has found what they believe is evidence of a planet forming around a star about 335 light years from Earth. They made the chance discovery while studying the protoplanetary disk of gas around a distant forming star using a technique called spectro-astrometry, which allows astronomers to detect small changes in the position of moving gas.
An international team has engineered and studied “active vesicles." These purely synthetic, molecularly thin sacs are capable of transforming energy, injected at the microscopic level, into organized, self-sustained motion.The ability to create spontaneous motion and stable oscillations is a hallmark of living systems and reproducing and understanding this behavior remains a significant challenge for researchers.
New research in Europe suggests that testing the temperature of breath could be a simple and noninvasive method to either confirm or reject the presence of lung cancer. Many research teams have been looking at the possibility of using breath tests for a number of cancers but this is the first study looking at breath temperature as a marker in lung cancer.
Researchers have sequenced the genomes and transcriptomes of five species of African cichlid fishes and uncovered a variety of features that enabled the fishes to thrive in new habitats and ecological niches within the Great Lakes of East Africa. The study helps explain the genetic basis for the incredible diversity among cichlid fishes and provides new information about vertebrate evolution.
The increased visual realism of 3-D films is believed to offer viewers a more vivid and lifelike experience than 2-D because it more closely approximates real life. However, psychology researchers at the Univ. of Utah, among those who use film clips routinely in the laboratory to study patients’ emotional conditions, have found that there is no significant difference between the two formats.
Scientists have woken up and smelled the coffee … and analyzed its DNA. More than 60 researchers from around the world mapped out the genetic instruction book of java. They found that what we love about coffee, the caffeine, is a genetic quirk and not related to the caffeine in chocolate or tea.
Up to 30% of people with the most common form of hemophilia develop antibodies that attack lifesaving protein injections, making it difficult to prevent or treat excessive bleeding. Now researchers have developed a way to thwart production of these antibodies by using plant cells to teach the immune system to tolerate rather than attack the clotting factors.
Researchers have designed a single molecule which can act as a useful building block in nanometer-size circuits. They found that the molecule functions as a resonant tunneling device, an essential component in mobile phones and WiFi. These devices typically have a complicated design consisting of several layers of different materials.
Scientists have made an important breakthrough in the fight against debilitating autoimmune diseases such as multiple sclerosis by revealing how to stop cells attacking healthy body tissue. Rather than the body’s immune system destroying its own tissue by mistake, researchers at the Univ. of Bristol have discovered how cells convert from being aggressive to actually protecting against disease.
For years scientists have theorized about how large rocks, some weighing hundreds of pounds, zigzag across Racetrack Playa in Death Valley National Park, leaving long trails etched in the earth. Now two researchers at the Scripps Institution of Oceanography at the Univ. of California, San Diego, have photographed these "sailing rocks" being blown by light winds across the former lake bed.
An ambitious study has created a “global roadmap” for prioritizing road building across the planet, to try to balance the competing demands of development and environmental protection. The map has two components: an “environmental-values” layer that estimates that natural importance of ecosystems and a “road-benefits” layer that estimates the potential for increased agriculture production via new or improved roads.
When you accidentally touch a hot oven, you rapidly pull your hand away. Although scientists know the basic neural circuits involved in sensing and responding to such painful stimuli, they are still sorting out the molecular players. Duke Univ. researchers have made a surprising discovery about the role of a key molecule involved in pain in worms, and have built a structural model of the molecule.
Although separated by hundreds of millions of years of evolution, flies, worms and humans share ancient patterns of gene expression, according to a massive Yale Univ.-led analysis of genomic data. Two related studies led by scientists at Harvard and Stanford,tell a similar story: Even though humans, worms and flies bear little obvious similarity to each other, evolution used remarkably similar molecular toolkits to shape them.
Cartilage lesions in joints often appear in older people as a result of degenerative processes, and appear in younger people after injuries and accidents. Such defects are difficult to repair and often require complicated surgery and long rehabilitation times. Researchers in Switzerland have reported that cells taken from the nasal septum are able to adapt to the environment of the knee joint and can thus repair articular cartilage defects.
Astronomers using the Green Bank Telescope have discovered that filaments of star-forming gas near the Orion Nebula may be brimming with pebble-size particles: planetary building blocks 100 to 1,000 times larger than the dust grains typically found around protostars. If confirmed, these dense ribbons of rocky material may well represent a new, mid-size class of interstellar particles that could help jump-start planet formation.
Older adults losing vision as they age are more likely to face an increased mortality risk, according to new research from Purdue Univ. The researchers analyzed data from the Salisbury Eye Evaluation study that tracked the vision health of 2,520 older adults, ages 65 to 84. The research was funded by the National Eye Institute.
Coffee contains antioxidants. Antioxidants fight gum disease. Researchers in dental medicine have found that coffee consumption does not have an adverse effect on periodontal health, and may have protective effects against periodontal disease.
- Page 1