Culture
WASHINGTON -- Researchers at the U.S. Naval Research Laboratory (NRL) developed a new technique that could enable future advancements in quantum technology.
The technique squeezes quantum dots, tiny particles made of thousands of atoms, to emit single photons (individual particles of light) with precisely the same color and with positions that can be less than a millionth of a meter apart.
A new study from researchers at the University of North Carolina at Chapel Hill's Carolina Population Center found that the risk of dying between the ages of 1 and 24 is substantially higher for children whose parents have lower levels of education, lower levels of income, or for those who live in a single-parent family.
Parents who financially help their unemployed adult children offset such costs by adjusting their behavior, particularly by spending less money on food, working more and reducing retirement savings, according to a new RAND Corporation study.
It is known that parents are increasingly helping their adult children, including by letting them live at home and providing them money and other assistance. Little, though, has been documented on the economic impact of such decisions on parents themselves.
Human cytomegalovirus (HCMV) may not be a household name as far as viruses go, but according to Xiaoping Zhu, professor and chair in Veterinary Medicine at UMD, half of the population walking around campus is likely to be a carrier. Once contracted, it lays dormant in your body for the rest of your life and can flare up whenever your immune system is severely compromised, giving you flu-like symptoms. This becomes a severe problem for people who already have weakened immune systems, for example the very young, old, pregnant women, organ transplant recipients, or HIV/AIDS patients.
A new study soon to appear in the Faculty of Public Health's Journal of Public Health suggests that participating in local food projects may have a positive effect on wellbeing and psychological health.
The El Niño-Southern Oscillation has been responsible for widespread, simultaneous crop failures in recent history, according to a new study from researchers at Columbia University's International Research Institute for Climate and Society, the International Food Policy Research Institute (IFPRI) and other partners. This finding runs counter to a central pillar of the global agriculture system, which assumes that crop failures in geographically distant breadbasket regions such as the United States, China and Argentina are unrelated.
In Gallium Nitride (GaN) implanted with a small amount of magnesium (Mg), NIMS succeeded for the first time in visualizing the distribution and optical behavior of the implanted Mg at the nanoscale which may help in improving electrical performance of GaN based devices. Some of the mechanisms by which introduced Mg ions convert GaN into a p-type semiconductor are also revealed. These findings may significantly expedite the identification of optimum conditions for Mg implantation vital to the mass production of GaN power devices.
An analysis of a 160,000-year-old archaic human molar fossil discovered in China offers the first morphological evidence of interbreeding between archaic humans and Homo sapiens in Asia.
The study, which appears in the journal Proceedings of the National Academy of Sciences, centers on a three-rooted lower molar--a rare trait primarily found in modern Asians--that was previously thought to have evolved after H. sapiens dispersed from Africa.
The new research points to a different evolutionary path.
Mental health patients want mental health diagnostic descriptions to better reflect what it feels like to live with their conditions in the World Health Organisation's global manual of diagnoses - according to a new Lancet Psychiatry report.
The study, by UK and US researchers at Norfolk and Suffolk NHS Foundation Trust (NSFT), the University of East Anglia, and Columbia University, in collaboration with the WHO Department of Mental Health and Substance Abuse, is the first to report feedback from service users on such a major mental health diagnosis guideline.
Vegetated highway medians are a proverbial buffet for small mammals, according to new research by University of Alberta biologists. Animals such as weasels, mink, and chipmunks use the roadside bands of vegetation as habitat to find food.
When it comes to climate change, ignoring the role of microorganisms could have dire consequences, according to a new statement issued by an international team of microbiologists.
Portland State study demonstrates how plants, trees and reflective materials can reduce extreme heat in city neighborhoods
Planting more vegetation, using reflective materials on hard surfaces and installing green roofs on buildings can help cool potentially deadly urban heat islands -- a phenomenon that exists in nearly all large cities -- a new study from Portland State University shows. Those solutions, however, present a growing challenge to developers and planners as neighborhoods become increasingly dense and single-family homes give way to apartment buildings.
During the mating season, male damselflies battle fiercely for control of prime territories containing resources - typically patches of floating leaves used for egg deposition in wetlands - that are key to attracting females. To the victors go the spoils: though a dominant male must then diligently guard his hard-won territory against interlopers, ownership of a territory gives him exclusive access to the females that congregate within his domain.
Some of his rivals, however, refuse to play by the rules.
While the era of app-based ridehailing services, such as Uber and Lyft, has been credited with keeping more impaired drivers off the road, increasing job opportunities and offering new levels of convenience, it is also linked with more congestion and traffic deaths.
The arrival of ridehailing is associated with an increase of approximately 3 percent in the number of motor vehicle fatalities and fatal accidents, according to research from the University of Chicago Booth School of Business.
Human genetic testing has evolved over the recent decades, allowing people to find their ancestors and even determine specific percentages of their heritage. Much like the advances in human genetic testing recently popularized by commercial organizations have allowed people to gain a better understanding of their ancestry, scientists are now a step closer to determining a genetic family tree for vegetables by linking biology with computer science.