Researchers have designed a family of materials to make LEDs that don’t include rare earths but instead are made out of copper iodide, which is an abundant compound. They tuned them to glow a warm white shade or various other colors using a low-cost solution process.
A new paper posits that the Pleistocene members of the now-extinct family of sthenurine kangaroos were likely bipedal walkers. The scientists make their case based on a rigorous statistical and biomechanical analysis of the bones of sthenurines and other kangaroos past and present.
Short-term modest weight gains in healthy, normal weight young adults was associated with more bad cholesterol levels in those who ate muffins cooked using saturated oil. However, individuals in the same study who ate muffins made with polyunsaturated oils had improved blood cholesterol profiles.
Turning street lights off decreases the number of grounded fledglings, according to a study. Thousands of birds are attracted to lights– sometimes referred to as light-pollution– every year worldwide during their first flights from their nests to the open ocean, a phenomenon called “fallout.”
The EPA has approved a new version of a popular weed killer to be used on genetically modified corn and soybeans. The EPA says that it will allow the use of a 2,4-D weed killer called Enlist Duo.
Collapsible wings may be a bird's answer to turbulence, according to a study in which an eagle carried its own “black box” flight recorder on its back.
Lake Erie has become increasingly susceptible to large blooms of toxin-producing cyanobacteria since 2002, potentially complicating efforts to rein in the problem in the wake of this year's Toledo drinking water crisis.
Facebook and Apple will now give up to $20,000 in benefits to help employees pay for infertility treatments, sperm donors and even to freeze their eggs. The move comes amid stiff competition for skilled engineers, and as many of the biggest firms try to diversify their male-dominated ranks to include and appeal to more women.
An Ebola patient was left in an open area of an emergency room for hours, and nurses treating him worked without proper protective gear and faced constantly changing protocols, according to a statement released by the largest nurses' union. Among those nurses was Nina Pham, who now has Ebola. The CDC has said some breach of protocol probably sickened Pham, but the union says protocols were either non-existent or changing constantly.
Arsenic, a well-known poison, can be taken out of drinking water using sophisticated treatment methods. Now, scientists have come up with a new low-cost, simple way to remove arsenic using leftovers from another known health threat— cigarettes.
Alcohol consumption isn't the only thing a breath analysis can reveal. Scientists have been studying its possible use for diagnosing a wide range of conditions in humans— and now in the beloved bottlenose dolphin.
Children who began life in overcrowded orphanages with bleak conditions and minimal human contact show that early childhood neglect is associated with changes in brain structure. New research has found that children who spent their early years in these institutions have thinner brain tissue in cortical areas that correspond to impulse control and attention.
Electronics based on carbon, especially carbon nanotubes, are emerging as successors to silicon for making semiconductor materials. They may enable a new generation of brighter, low-power, low-cost lighting devices that could challenge the dominance of LEDs in the future and help meet society's ever-escalating demand for greener bulbs.
Using 3-D printing and novel semiconductors, researchers have created a power inverter that could make electric vehicles lighter, more powerful and more efficient. At the core of this development is wide band gap material made of silicon carbide with qualities superior to standard semiconductor materials.
Extreme adaptations of species often cause such significant changes that their evolutionary history is difficult to reconstruct. Now, zoologists have discovered a new parasite species that represents the missing link between fungi and an extreme group of parasites.