Plastic with a thousand faces: A single piece of Nafion foil makes it possible to produce a broad palette of complex 3-D structures. Researchers now describe how they use simple chemical 'programming' to induce the foil to fold itself using origami and kirigami principles. These folds can be repeatedly 'erased' and the foil can be 'reprogrammed'.
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Scientists work to develop heat-resistant 'cow of the future'
More than half the cattle in the world live in hot and humid environments, including about 40 percent of beef cows in the United States. By using genomic tools, researchers aim to produce an animal with superior ability to adapt to hot living conditions and produce top-quality beef.
Decades after the discovery of anti-obesity hormone, scant evidence that leptin keeps lean people lean, scientists say
Decades after the discovery of anti-obesity hormone, scant evidence that leptin keeps lean people lean, scientists caution.
Leisure activities lower blood pressure in Alzheimer's caregivers
Going for a walk outside, reading, listening to music — these and other enjoyable activities can reduce blood pressure for elderly caregivers of spouses with Alzheimer’s disease, suggests a study.
Tropical viruses: Coming soon to Europe?
The mosquito-borne viral disease Chikungunya is usually found in tropical areas. Researchers have now discovered how climate change is facilitating the spread of the Chikungunya virus. Even if climate change only progresses moderately – as scientists are currently observing – the risk of infection will continue to increase in many regions of the world through the end of the 21st century. If climate change continues unchecked, the virus could even spread to southern Europe and the United States.
Meteorite mystery solved with research on high pressure
A research group has found a long-sought explanation for the apparent contradictions implicit in the composition of lunar and Martian meteorites. They were able to demonstrate how meteorites could contain within narrow spaces minerals whose formation conditions are quite different. These findings provide new impetus for meteorite research.
Dune ecosystem modelling
Acacia longifolia, which is native to Australia, is a species which was cultivated in Portugal primarily to stabilize dunes and as an ornamental plant; now it has spread out uncontrollably in Portugal and into many ecosystems around the world. Using the acacia as an example, researchers show that the location has an effect on interaction with other species.
Equipping form with function
Mechanical structures in steerable cars are optimized to fit exactly one particular shape of the toy. If designers want to reuse such a mechanism with different shapes, the necessary adjustments to the components were often unmanageable for non-experts. Scientists have developed an interactive design tool that allows users to easily adjust a mechanical template to the shape of their choice.
Correct connections are crucial
Investigators have been examining the use of deep brain stimulation in the treatment of Parkinson's disease in an attempt to optimize treatment effectiveness.
Child safety or parental duty: New study maps out core concepts in the vaccination debate
The recent measles outbreak in Minnesota has been a sobering reminder of how highly concentrated populations of vaccination skeptics can elevate an entire community's risk of infection. Around the edges of every headline-grabbing outbreak, there's a vast range of opinions being circulated about the risks and benefits of early childhood immunization. The vaccination debate maintains a constant presence on social media platforms. These varied viewpoints caught the attention of scientists who are conducting a three-year study on the ways online interactions influence our beliefs.