Additive manufacturing built an early following with 3-D printers using polymers to create a solid object from a Computer-Aided Design model. The materials used were neat polymers—perfect for a rapid prototype, but not commonly used as structural materials.
* This article was originally published here
Friday, 28 June 2019
The RoboBee flies solo—Cutting the power cord for the first untethered flight
The RoboBee—the insect-inspired microrobot developed by researchers at Harvard University—has become the lightest vehicle ever to achieve sustained flight without the assistance of a power cord. After decades of work, the researchers achieved untethered flight by making several important changes to the RoboBee, including the addition of a second pair of wings. That change, along with less visible changes to the actuators and transmission ratio, gave the RoboBee enough lift for the researchers to attach solar cells and an electronics panel.
* This article was originally published here
* This article was originally published here
3-D printed prosthetic hand can guess how people play 'rock, paper, scissors'
A new 3-D-printed prosthetic hand can learn the wearers' movement patterns to help amputee patients perform daily tasks, reports a study published this week in Science Robotics.
* This article was originally published here
* This article was originally published here
Camera joins Apple band in patent for smartwatch
Camera at the end of a smartwatch strap, anyone? It is being suggested as a way to overcome some hurdles in smartwatch picture-taking.
* This article was originally published here
* This article was originally published here
What can Wikipedia tell us about human interaction?
EPFL researchers have studied the dynamics of network structures using one of the world's most-visited websites: Wikipedia. In addition to a better understanding of online networks, their work brings exciting insights into human social behavior and collective memory.
* This article was originally published here
* This article was originally published here
Fake news 'vaccine' works: 'Pre-bunking' game reduces susceptibility to disinformation
An online game in which people play the role of propaganda producers to help them identify real world disinformation has been shown to increase "psychological resistance" to fake news, according to a study of 15,000 participants.
* This article was originally published here
* This article was originally published here
Teens who can describe negative emotions can stave off depression
Teenagers who can describe their negative emotions in precise and nuanced ways are better protected against depression than their peers who can't. That's the conclusion of a new study about negative emotion differentiation, or NED—the ability to make fine-grained distinctions between negative emotions and apply precise labels— published in the journal Emotion.
* This article was originally published here
* This article was originally published here
Why you might want to leave those dandelions alone
Nothing can threaten a velvety green lawn like vagabond dandelions—but it isn't all bad, says a University of Alberta gardening expert.
* This article was originally published here
* This article was originally published here
How to improve corporate social and environmental responsibility
Social and environmental responsibility in globalized supply chains are hard to police. That task often falls to nongovernmental organizations, or NGOs, that publicize abuses and call out irresponsible corporations and industries.
* This article was originally published here
* This article was originally published here
Ending needless chemotherapy for breast cancer
A diagnostic test developed at The University of Queensland might soon determine if a breast cancer patient requires chemotherapy or would receive no benefit from this grueling treatment.
* This article was originally published here
* This article was originally published here
Polymer-coated gold nanospheres do not impair the innate immune function of human B lymphocytes
Over the past 20 years, the use of nanoparticles in medicine has steadily increased. However, their safety and effect on the human immune system remains an important concern. By testing a variety of gold nanoparticles, researchers at the University of Geneva (UNIGE) and collaborators are providing first evidence of their impact upon human B lymphocytes—the immune cells responsible for antibody production. The use of these nanoparticles is expected to improve the efficacy of pharmaceutical products while limiting potential adverse effects.
* This article was originally published here
* This article was originally published here
A peculiar ground-state phase for 2-D superconductors
The application of large enough magnetic fields results in the disruption of superconducting states in materials, even at drastically low temperature, thereby changing them directly into insulators—or so was traditionally thought. Now, scientists at Tokyo Institute of Technology (Tokyo Tech), the University of Tokyo and Tohoku University report curious multi-state transitions of these superconductors in which they change from superconductor to special metal and then to insulator.
* This article was originally published here
* This article was originally published here
Robot arm tastes with engineered bacteria
A robotic gripping arm that uses engineered bacteria to "taste" for a specific chemical has been developed by engineers at the University of California, Davis, and Carnegie Mellon University. The gripper is a proof-of-concept for biologically-based soft robotics.
* This article was originally published here
* This article was originally published here
Mexico City Policy linked to 40% increase in abortions in sub-Saharan African countries reliant on US foreign aid
The most comprehensive study to measure the impact of the Mexico City policy between 1995 and 2014 finds that abortion rates rose substantially among women in sub-Saharan African countries with high exposure to the policy relative to countries less exposed. In addition, the use of modern contraception declined and pregnancies increased. This pattern of more frequent abortions and lower contraceptive use was reversed after the policy was rescinded, suggesting a causal effect, according to an observational study published in The Lancet Global Health.
* This article was originally published here
* This article was originally published here
Mum's workplace exposure to solvents may heighten child's autism risk
A mother's workplace exposure to solvents may heighten her child's risk of autism, suggests research published online in the journal Occupational & Environmental Medicine.
* This article was originally published here
* This article was originally published here
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