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129,432 articles from ScienceDaily

Special filters in glasses can help the color blind see colors better, study finds

A new study found that special patented glasses engineered with technically advanced spectral notch filters enhance color vision for those with the most common types of red-green color vision deficiency ('anomalous trichromacy'). Notably, the ability to identify and experience expanded color was also demonstrated when color blind test subjects were not wearing the glasses.

The new tattoo: Drawing electronics on skin

One day, people could monitor their own health conditions by simply picking up a pencil and drawing a bioelectronic device on their skin. In a new study, engineers demonstrated that the simple combination of pencils and paper could be used to create devices that might be used to monitor personal health.

Green is more than skin-deep for hundreds of frog species

The through-and-through greenness of hundreds of frog species that can be found deep in their lymphatic fluid, soft tissues and even bones, comes from a clever biochemical workaround that combines a normally virus-fighting type of protein with a toxic byproduct of blood breakdown. The camouflage innovation has happened at least 40 times across 11 families of frog and toad.

Artificial energy source for muscle

Muscle physiologist sought an alternative energy source to replace the body's usual one, adenosine triphosphate (ATP). Such a source could control muscle activity, and might lead to new muscle spasm-calming treatments in cerebral palsy, for example, or activate or enhance skeletal muscle function in MS, ALS and chronic heart failure. They report this month that they have made a series of synthetic...

When calling loudly, echolocation is costly for small bats

Calling in the ultrasonic range enables small bats to orient themselves in the dark and track down insects. Louder calls travel farther, improving a bat's ability to detect their prey. It was long assumed that echolocation does not contribute much to energy expenditure in flight because individuals couple their calls with the beat of their wings. Scientists have now shown that high intensity...

Gigantic, red and full of spots

Starspots are more common among red giant stars than previously thought. Astronomers report that approximately eight percent of red giants exhibit such spots. Although red giants are generally regarded as slowly rotating stars, those with starspots are apparently an exception. The new publication offers a comprehensive analysis of the reasons for their short rotation periods.

For next-generation semiconductors, 2D tops 3D

A research team designs a halide perovskite material for the next-generation memory device. Commercialization is accelerated for next-generation data storage device via low-operating voltage and high-performance resistive switching memory.

Cystic fibrosis: Why so many respiratory complications?

Cystic fibrosis causes severe respiratory and digestive disorders. Despite considerable therapeutic advances, this disease still reduces life expectancy, in particular due to life-threatening respiratory infections. Scientists have now discovered the reason for this large number of lung infections: a protein, Vav3.