New findings show that a micro RNA from the shoot keeps legume roots susceptible to symbiotic infection by downregulating a gene that would otherwise hinder root responses to symbiotic bacteria. These findings help us understand what it takes to make nitrogen-fixing symbiosis efficient, and what we need to do to exploit it agronomically.
Ivory sellers in Europe using eBay are using the same code words across different languages to covertly advertise items for sale, potentially making it easier for law enforcement agencies to uncover such activities by reducing the number of phrases they have to track.
Over the last few years, scientists have discovered connections between gut microbiota imbalances and various diseases. Now, in a study using mice, researchers have revealed a surprising relationship between a viral detection system, the composition of the gut microbiota, and the development of skin allergies. Their findings suggest potential new therapies.
Mars had right conditions for subsurface life some 3.7 to 4.1 billion years ago (Noachian period), according to new research from Brown University. “We showed, based on basic physics and chemistry calculations, that the ancient Martian subsurface likely had enough dissolved hydrogen to power a global subsurface biosphere,” said study lead author Jesse Tarnas, a [...]
Neurologists have provided, for the first time, evidence that blood deposits in the brain may not require a blood vessel tear. The researchers found that brain endothelial cells, the cells that line blood vessels of the brain, have the capacity for engulfing red blood cells and depositing them outside the blood vessels and into the substance of the brain, without requiring a disruption of the vasculature.
Scientists have identified acquisition of two types of internal models for motor control, which are likely to be stored in the cerebellum. They show that motor control in human hand reaching movement relies on two types of motor learning: (i) acquisition of explicit motor control and (ii) acquisition of implicit motor control.
Representing a paradigm shift in thoracic surgery, the hybrid operating room combines three techniques into a single appointment eliminating multiple clinical visits for improved patient experience and outcomes.
A new auto-commentary looks at how an emerging area of artificial intelligence, specifically the analysis of small systems-of-interest specific datasets, can be used to improve drug development and personalized medicine.
For individuals carrying a genetic mutation that causes Alzheimer's disease, engaging in at least 2.5 hours of physical activity per week may have beneficial effects on markers of Alzheimer's disease brain changes and may delay cognitive decline, according to a new study.
Polyploid plants have a duplicate set of chromosomes. As a result, large-scale genetic changes are therefore possible in the new species, making it more adaptable in comparison with the parental species, as has now been demonstrated by researchers using rockcress.
A newly developed drug can prevent the most common type of pancreatic cancer from growing and spreading in laboratory mice, according to a new study. The study also demonstrated in mice that the drug, Metavert, may prevent patients from developing a resistance to currently used pancreatic cancer chemotherapies.
University of Leicester’s Professor Ken Pounds and co-authors report the detection of matter falling into a black hole at 30% of the speed of light. It is now well established that a supermassive black hole lies in the center of most galaxies, and further that it accretes matter through a disk. With sufficient matter (interstellar [...]
According to a new study, published in the journal Scientific Reports, older adults with irregular sleep patterns weigh more, have higher blood sugar and pressure, and a higher risk of cardiovascular disease; irregular sleepers also have increased stress and depression levels, psychiatric factors integrally tied to cardiometabolic disease. “From our study, we can’t conclude that [...]
For the first time, researchers have developed a data set quantifying what the social cost of carbon -- the measure of the economic harm from carbon dioxide emissions -- will be for the globe's nearly 200 countries. Although much previous research has focused on how rich countries benefit from the fossil fuel economy, while damages accrue primarily to the developing world, the top three counties with the most to lose from climate change are the United States, India and Saudi Arabia -- three major world powers.
Scientists use a computational method to calculate the optical properties of two-dimensional materials. Their work promises to simplify the process of identifying the right materials for next-generation optoelectronic devices.
Scientists identify new details of how a sugar-signaling molecule helps regulate oil production in plant cells. The work could point to new ways to engineer plants to produce substantial amounts of oil for use as biofuels or in the production of other oil-based products.