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Algorithm generates origami folding patterns for any shape

Jue, 06/22/2017 - 22:00
A new algorithm generates practical paper-folding patterns to produce any 3-D structure.

Self-folding origami

Jue, 06/22/2017 - 22:00
Plastic with a thousand faces: A single piece of Nafion foil makes it possible to produce a broad palette of complex 3-D structures. In the journal Angewandte Chemie, researchers 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'.

Chatter in the deep brain spurs empathy in rats

Jue, 06/22/2017 - 22:00
By combining electrical monitoring of neural activity with machine learning, a team of Duke and Stanford University neuroscientists has tuned into the brain chatter of rats engaged in helping other rats. The results clarify earlier conflicting findings on the role of specific brain regions, such as the insula, in guiding antisocial and psychopathic behavior, and may shed light on how to encourage altruistic behavior in humans.

Safety-net providers can adopt medical home models and improve primary care

Jue, 06/22/2017 - 22:00
The medical home model of advanced primary care is being adopted by practices across the nation, but there have been questions about whether the approach can be accomplished in safety net settings. A new study finds that federally qualified health centers that participated in a program to help them adopt a medical home model were successful in doing so, but it did not decrease the use of specialty care, acute care services or Medicare expenditures.

Treating Lyme disease: When do symptoms resolve in children?

Jue, 06/22/2017 - 22:00
Mattia Chason, M.D., and colleagues in infectious disease examined how quickly Lyme disease symptoms typically resolve in children, a research question that has received little prior study.

More democracy through mathematics

Jue, 06/22/2017 - 22:00
For democratic elections to be fair, voting districts must have similar sizes. When populations shift, districts need to be redistributed -- a complex and, in many countries, controversial task when political parties attempt to influence redistricting. Mathematicians at the Technical University of Munich (TUM) have now developed a method that allows the efficient calculation of optimally sized voting districts.

Senate health reform proposal jeopardizes care for us all as we age, AGS experts

Jue, 06/22/2017 - 22:00
Newest proposal in a line of legislation to repeal and replace the Affordable Care Act will harm access to key health services for older Americans, families, caregivers, and healthcare professionals, the AGS has said in a statement.

Leisure activities lower blood pressure in Alzheimer's caregivers

Jue, 06/22/2017 - 22:00
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 in Psychosomatic Medicine: Journal of Biobehavioral Medicine, the official journal of the American Psychosomatic Society. The journal is published by Wolters Kluwer.

Dune ecosystem modelling

Jue, 06/22/2017 - 22:00
Using the acacia as an example, researchers show that the location has an effect on interaction with other species.

Sweet bribes for ants are key to crops bearing fruit, study shows

Jue, 06/22/2017 - 22:00
Some flowering crops, such as beans and cotton, carefully manage the amount and sweetness of nectar produced on their flowers and leaves, to recruit colonising ants which deter herbivores. This strategy balances their needs for defence and reproduction.

Special issue of Future Medicinal Chemistry explores advances in neurodegenerative disease therapy

Jue, 06/22/2017 - 22:00
Future Medicinal Chemistry, a leading MEDLINE indexed journal for medicinal chemists, has published two Special Focus issues on Medicinal Chemistry Advances in Neurodegenerative Disease Therapy.

MRI without contrast agents? Yes, with sugar!

Jue, 06/22/2017 - 22:00
Scientists from the German Cancer Research Center (DKFZ), in collaboration with colleagues from Heidelberg University Hospital, have been able to visualize brain cancer using a novel MRI method. They use a simple sugar solution instead of conventional contrast agents, which can have side effects in the body.

A unique amino acid for brain cancer therapy

Jue, 06/22/2017 - 22:00
Researchers discover potential application of amino acid taurine in photodynamic therapy for brain cancer.

Equipping form with function

Jue, 06/22/2017 - 22:00
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 at IST Austria have developed an interactive design tool that allows users to easily adjust a mechanical template to the shape of their choice. The tool will be presented at this year's prestigious "SIGGRAPH" conference.

Does dark matter annihilate quicker in the Milky Way?

Jue, 06/22/2017 - 22:00
Researchers at the Tata Institute of Fundamental Research in Mumbai have proposed a theory that predicts how dark matter may be annihilating much more rapidly in the Milky Way, than in smaller or larger galaxies and the early Universe.

Is it okay for children to count on their fingers?

Jue, 06/22/2017 - 22:00
Is it OK for children to count on their fingers? Generations of pupils have been discouraged by their teachers from using their hands when learning maths. But a new research article shows using fingers may be a much more important part of maths learning than previously thought.

How insulin in the brain may suppress the subjective feeling of hunger

Jue, 06/22/2017 - 22:00
Insulin in the brain may help regulate the hunger sensation and improve functional connectivity in certain cognitive brain regions (default-mode network, DMN *) as well as in the hippocampus and hypothalamus. This is the finding of a new study by researchers at the German Center for Diabetes Research (DZD) in Tübingen.

Following a friend leads to unsafe driving behavior

Jue, 06/22/2017 - 22:00
A new study inspired by a court case involving a driver seriously hurt in an accident when following another car to a destination, provides evidence to show that the car behind makes risky driving maneuvers. Driving faster, more erratically, closer to the car in front and jumping traffic lights are all blamed on a fear of getting lost. Drivers are advised to provide the follower with a map or navigational guide before setting off.

Neutron-rich nucleus shapeshifts between a rugby ball and a discus

Jue, 06/22/2017 - 22:00
Researchers have shown that there are two coexisting, competing quantum shapes at low energy in 98Kr, never before seen for neutron-rich Kr isotopes. The team also showed that these isotopes experience a gentle onset of deformation with added neutrons, in sharp contrast with neighboring isotopes of rubidium, strontium, and zirconium, which change shapes suddenly at neutron number 60. This study marks a decisive step towards an understanding of the limits of this quantum phase transition region, and was published in Physical Review Letters.

How the climate can rapidly change at tipping points

Jue, 06/22/2017 - 22:00
During the last glacial period, within only a few decades the influence of atmospheric CO2 on the North Atlantic circulation resulted in temperature increases of up to 10 degrees Celsius in Greenland -- as indicated by new climate calculations from researchers at the Alfred Wegener Institute and the University of Cardiff.

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